10ec:8176 [Lenovo ThinkPad X120e] Wireless not working in 12.04 for rtl8192ce (RTL8188CE)

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Still happens with the lastest kernel.

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Would it be possible for you to test the latest upstream kernel? It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . If possible, please test the latest v3.2-rcN kernel (Not a kernel in the daily directory). Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag(Only that one tag, please leave the other tags). This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text.

If this bug is fixed by the mainline kernel, please add the following tag 'kernel-fixed-upstream-KERNEL-VERSION'. For example, if kernel version 3.2-rc1 fixed and issue, the tag would be: 'kernel-fixed-upstream-v3.2-rc1'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. If you believe this bug does not require upstream testing, please add the tag: 'kernel-upstream-testing-not-needed'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

Bug is still present after installing linux-image-3.2.0-030200rc5-generic-pae_3.2.0-030200rc5.201112091935_i386.deb

Will re-attach logs.

Bug is still present after installing linux-image-3.2.0-030200rc5-generic-pae_3.2.0-030200rc5.201112091935_i386.deb

Also, after installing that kernel, I could no longer access any terminals (either gnome-terminal or any TTY with control+alt+f1-6).
Everything else worked, but no terminal, so I couldn't collect logs with the latest kernel.
Same symptoms, though.

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Added more logs since for the first time, for a brief moment, wireless connected :)

I've compared PCI information, so I believe I have identical hardware. I'm using a clean x86_64 Precise install from Dec 13. I've tested against these access points:

WRT310 N (2.4 Ghz)
WNDR 3300 G
Atheros MIPS AGN (2.4 Ghz)

The Linksys E3000 that you are using is capable of dual band (2.4 Ghz and 5 Ghz). I suggest you configure it to only operate in BG mode (2.4 Ghz) without N enabled to see if that makes a difference. The RTL8188CE wifi adapter is only capable of operating in 2.4 Ghz.

I've tested with a live cd of 64bit, and it sometimes connects, sometimes it doesn't. I've tried it against the E3000 at 2.4Ghz (it has 2 antennas, so having the 5Ghz on or off shouldn't matter), but I've also tried it against a Linksys WRT54G set up as a repeater, and it's the same thing (as well as an unknown neighbour AP with no encryption).
It'll connect, most likely on first boot, and then after suspending/resuming a few times, or connecting/disconnecting, it'll timeout trying to connect many times, and maybe, it'll be able to re-connect at some point.
Attaching the logs from that session with apport-collect

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Two items of note in WifiSyslog.txt; your adapter EEPROM thinks its in Ecuador (EC) while mine thinks its French (FR), mine always authenticates and associates on the first attempt.

I don't think the regulatory domain differences are significant. However, the inability to get an authentication response might indicate a transmitter or antenna problem. I don't suppose you made sure this thing worked under Windows ?

I never booted into Windows, booted directly into an Oneiric live cd and installed it :)
I could try installing wiping and Windows if it'll help debug.
Alternatively, is there any way to change the regulatory domain to discard that?

Martin - I think the regulatory domain is a red herring. Knowing whether Windows works would be very instructive. That would at least tell us the hardware is sane because I'm beginning to have my doubts.

Alright, after jumping through a lot of hoops I got Windows 7 on it (blew away my Ubuntu partition!), and wireless works perfectly.
I can connect to my networks as many times as I want, tried rebooting, suspeding and switching between networks dozens of times. It's super responsive and works great.
I've found random forum posts on the internet suggesting that replacing the firmware in Ubuntu with the one on Windows fixes the problem. Not sure if that means anything.
Also the "type" for my X102e is 0596.

Will install a fresh precise on it now again.

Maybe you should dual-boot until we figure this out. If you know the firmware file, perhaps you can attach it so I can experiment with it.

Martin - any luck with the fresh install and full update ?

Haven't been able to do a fresh install, filed bug #905411.
Downloading alternate installer right now :)
I'm not super hopeful, though, considering the live CD has the same problem with the wireless.

I went back and found some of the threads discussing the fact that the kernel driver sucks and it needs to be downloaded and re-compiled from the realtek website (it didn't compile for me on Precise):
- http://ubuntuforums.org/showthread.php?t=1699238
- http://forums.techarena.in/windows-software/1440447.htm
- http://www.thinkwiki.org/wiki/Ubuntu_10.10_Installation_instructions_for_the_ThinkPad_X120e
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/769812
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/749871
- Several places mention this as a source to get things working in previous versions: https://launchpad.net/~lexical/+archive/hwe-wireless

Fresh install, updated packages, same story.
Wireless doesn't work most of the time, although with enough retries it manages to connect.

After downloading and compiling the driver from realitek, it seems to work well.
Here are the instructions (it's a bit convoluted atm for precise):
Download 92ce_se_de_linux_mac80211_0003.0401.2011.tar.gz from: http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PFid=48&Level=5&Conn=4&ProdID=278&DownTypeID=3&GetDown=false&Downloads=true
Then decompress and follow the instructions here: http://ubuntuforums.org/showpost.php?p=11545154&postcount=9

After a day of using it, it doesn't so much work "well", but "better". The connection establishes faster (takes 1 or 2 tries rather than a billion) and is better at sustaining it (although it still drops every now and then).

After continued use and talking to other folks with the same chipset, the problem seems to become very obvious under heavy usage like video streaming or using google hangouts.

This bug seems related: https://bugzilla.novell.com/show_bug.cgi?id=718736

Have any of you tried 'apt-get install linux-backports-modules-cw-3.3-precise-generic' ?

I ended up replacing the card with an Intel one because the laptop was basically an expensive brick :)
I do still have it, so I'll try to put it back and try that package.

It does seem to be an extended problem: http://blogs.gnome.org/danni/2012/03/08/wireless-issues-with-rtl8192ce-and-thinkpad-x220/

I got the same problem(Thinkpad T420)!!!

Actually, I have this problem on 11.04, 11.10 also(tried a lot but did not get it work, which forced me to get back to windows for a while. Now trying 12.04, the problem is still there!!)

@Tim Gardner (timg-tpi)
I tried 'apt-get install linux-backports-modules-cw-3.3-precise-generic' , not working.

I tried kernel 3.2.0-18 and 3.3.0-030300rc6, problem still there.

And also followed some suggestions to replace network-manager with wicd, still there.

network works great under windows without any problem

Seems better with linux-backports-modules-cw-3.3-precise-generic:

331 packets transmitted, 317 received, 4% packet loss, time 330600ms

1000 packets transmitted, 988 received, 1% packet loss, time 1000720ms
rtt min/avg/max/mdev = 1.199/5.505/815.552/37.140 ms

But still noticeable unreliability (streaming a video over the network lags every few minutes).

This is all on the local network, 4 mts from the router and the same situation has zero packet loss with the intel wireless card.

Lenovo L420 user here. Everything works fine at home on WPA2 Personal with Technicolor Gateway TG582n

and

wifi hotspot on android Atrix phone.

Drops constantly on WPA2 Enterprise with PEAP and MSCHAP this is uni network(EDUROAM).

Doesn't work neither on 12.04 supplied drivers or those from realtek website.

Hi Guys, same problem here. In Windows work very well.

I have a sager NP8151 and same realtek Wifi Lan, connect in wifi work in 4 pings stops traffic.

i`m using ubuntu 12.04 beta, any solution for the problem?

Sorry for my english.

I've been running Kubuntu Precise since Jan 3rd and the 3.2.0-14 kernel and didn't have any problems until the 3.2.0-18 kernel. I've upgraded successively to the -21 kernel, which I am now using and the loss of receive performance is still present.

Dropping my wireless router from 11n to 11g increased the time between drop outs but didn't stop them. Enabling or disabling IPv6 had no effect. As I carry my laptop away from my Tl-1430N wireless router (with three antennas and transmitting at high power) the signal strength drops from 90% (2.5 meters away) to20% (20 meters away), upon which the rtl8192ce disconnects from the AP. While I am setting here less than 3 meters from my AP with only 92% I have 5 neighbors who are getting 100% signal strength on my Acer 7739.

There was an announcement claiming that the "loss of receive performance" had been fixed in 3.2.0-14. On March 30, 2012 GregH announced that the same problem had been patched in the 3.0-stable kernel. Perhaps someone with a little cred in that area should tell him that a regression has crept into the kernel since -19.

with the -23 kernel the bug is still present.

Still present even in 3.4-rc4 kernel.

I have Asus PCE-N15 card with this chipset.
In Windows it works just ok, but in Ubuntu it loses connectivity every 1-2 minutes.
Network manager shows that wifi is connected and is ok, but i cant access even my router.
Reconnect to wifi network helps, but also for 1-2 minutes. Sometimes, though, connection remains vital for a longer period.
Problem was present in 11.10 (dont know about earlier Ubuntu releases, i got this card not so long ago).

I am also affected. Laptop is a ThinkPad X121e brought in October 2011. Same behaviour as above. In both 11.10 and 12.04 the WLAN connection is very unstable and even hard to establish. Observed behaviour is that after an apparently random period of time there is no more communication possible on the connection, but the network manager still indicates an established connection. A manual reconnection fixes the problem for the moment but it reappears again after some minutes.

I propose to set the Importance to high at least, given the fact that it affects quite a lot of people and that it severely affects the usability. Having to reset the WLAN connection every few minutes severely reduces the working efficiency.

Same for me on a Thinkpad X121e (AMD version). The wireless connection was really unstable, regardless if using stock driver or Realtek driver and regardless of the powersave-setting (module option ips).

This bug really makes networking unusable, especially when using NFS. Eventually I replaced the card with an Intel model (although this is a bit tricky on an AMD Thinkpad...).

I am also affected.
I also have a Netbook 121e (AMD Version) running ubuntu 11.10 64bit.
The unstability grows with the fact that the connection is weaker.

This network connection problem is very very annoying and I hope that a solution will be found very soon.

Changing the network adapter would be nice if this would be not so tricky and I would rather avoid opening a computer that has still valid waranty...

My Girlfriend also has a x121e with the same problems, so I replaced her WLAN card.
For those wanting to do the same: The trick is to plug the card into the spare mini PCIe slot and not the WLAN card slot. This way the BIOS will not complain about unsuproted hardware. The spare slot is meant for a WWAN/UMTS card, but the WLAN antenna cables reach it just fine. It is really simple to do its just 3 screws for the panel and one for the card, plus the antenna plugs.

I bought a Intel Centrino Advanced - N 6200 card (half lenght PCIe) for about 20€ and it works perfectly. Though I recomend using a full lenght PCI express card as thats what the slot is made for (I had to fix mine with tape, which is a lot mare stable than it sounds).

(Sorry if this is of topic for a bug report, but I thought it might help some people.)

You can also check here: http://askubuntu.com/questions/95360/how-to-get-a-stable-wlan-connection-with-a-lenovo-x121e/

Toshiba NB505, Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)

Works perfectly in Windows 7 Basic. Worked very well in 11.10. Fails to connect in 12.04.

Lenovo w520 experiences problems roaming and then losing authenticatoin on WPA2-PEAP-MSCHAPV2 corp network. Seems to work OK at other times. Generic Pangolin install with official updates.

I bought Asus N15 Internal PCI-E card which uses the realtek chipset and the rtl8192ce driver. The stability is unbearable, connection drops too frequently, and it take really long time to even get connected. It shows 300Mb/s but on uploads it can't even transfer 1mb/s on local network. Just purchased Cisco PCI N600 adapter. I hope that one has a well written driver, should have it in 2 days.

I'm on a Microstar, Ubuntu 12.04 w/ Sitecom WL-352 USB adapter which uses RTL8192SU apparently. Same issue here. Network Mgr indicates 150 Mb/s. In reality speed drops to 0.0 or 0.1 Kb/s. Practically impossible to access internet. Spent 2 days already trying to find a solution but nothing yet. Worked all fine until latest updates in 11.10.

Another ThinkPad W520 with realtek RTL8188CE wifi adapter here.
Very often cannot connect to wireless network.
Seems related to the signal strength. Connects near the AP, but fails further away...
If need info from the system, let me know, or if there is a change to try, I could do that.

Built the wifi driver from the Realtek web site at

    http://www.realtek.com/downloads/downloadsView.aspx?Langid=1&PNid=21&PFid=48&Level=5&Conn=4&DownTypeID=3&GetDown=false&Downloads=true

with the description "Linux driver for kernel 2.6.24 (and later, up to 3.2.x)" for device I got "RTL8188CE", and it seems to act better.

I am running Ubuntu 12.04, 3.2.0-24-generic kernel.

My recent observations suggest that high CPU load contributes in loosing the wireless connection.

i got a RTL8188CE in a acer d257 and it dc's after some minutes of using.
building the driver from realtek does not help

i should note that for last week or two i got stable connection with my ASUS PCE-N15.
i did not do anything special, just installed all official Ubuntu updates.
dont know is this related or not, but i also updated firmware for my wi-fi router (Zyxel Keenetic) to the latest.

I had the same issue with Ubuntu 12.04 on Shuttle XS35-703 V2 (Realtek RTL8188CE).
No more problems with the driver from Realtek from comment #106.

I am still having quite a bit of problem. Seems related to the signal power, and also to whether the laptop is running off of battery or power supply...

Considering giving up on the Realtek device and going a different device, perhaps Intel...

Ubuntu 12.04, using an ASUS PCE-N15 with the RTL8188CE chipset. Connects to the network but the connection is very flakey. Intermittent dropouts.

Best way to test is with streaming audio. I get constant dropouts, especially when browsing at the same time.

For reference, an 802.11g wifi *bridge* plugged into my ethernet has been performing better in the same spot!

Ubuntu 12.04 64bit, Lenovo E420s, RTL8188CE Wifi Adapter. No problems in Windows.

Same problems as everyone above. Has no trouble connecting to the internet, but loses connectivity every few minutes and will only be resolved by disconnecting and reconnecting. Additionally, connection speed is MUCH lower on Ubuntu than in Windows. This becomes extremely apparent when video chatting. Have spent weeks trying to fix this issue with every fix imaginable I could find through Google. Nothing works.

Anything less than High Importance on this, as it affects such a wide swath of people and makes operating on Ubuntu unbearable, is ridiculous. This is a verified problem, and some guidance would be appreciated.

Nicola see comment #106 to solve all your network problems.

ar comment #106 did not help me. The problems continued. So "see comment #106 to solve all your network problems." does not work for everybody and we still need a out-of-the-box-solution for all people.

A quick test with Ubuntu 11.10, booted off of a USB stick, shows a more reliable operation.

Toshiba NB510 - RT8188CE - unreliable connection, drops connection frequently, requires reboot to re-connect. Behaviour displayed with 12.04 stock install and with Realtek drivers. Happens with several wifi APs and HTC phone as AP.

When I set another laptop up with adhoc wifi AP using net manager applet, the RT8188CE connected and worked perfect;y for 5+ hours.

"Ubuntu 12.04 64bit, Lenovo E420s, RTL8188CE Wifi Adapter. No problems in Windows."

Same here, wifi is basically unusable in areas with weak signal strength. ie. disconnects after ~10 seconds.
Whereas it can easily maintain a connection in windows with the same signal strength without dropping out.

Ubuntu 12.04, 64bit, Lenovo ThinkPad E525, RTL8188CE. Affected by problems.

I've been watching the output to syslog and have noticed a few things.

* When the card is actually up, it works great.
* When the card goes into "poor performance," it's actually rapidly negotiating and losing authentication with the router. I frequently see "Reason 6" messages prior to a reauthentication attempt.

kernel: [ 111.866669] wlan0: deauthentiated from <redacted> (Reason: 6)
wpa_supplicant[1090]: CTRL-EVENT-DISCONNECTED bssid=<redacted> reason=6

These messages are followed by successful renegotiation, which typically ends with the line:
dhclient: bound to <IP address> -- renewal in 48 seconds.

At this point, either another DHCPREQUEST occurs, which means the connection works for another X seconds, or it fails for whatever reason and spits out a giant amount of spam, preceded by the Reason 6 codes.

That leads me to suspect something funny about timing. When the timing lines up right, the card works fine. When the timing doesn't line up right, it bombs out.

I've tried the fix from comment #106, but to no avail.

Also, for whatever it's worth, the wireless connection works fine on unsecured APs. I don't know if it has he same effect on a WEP-secured or WPA1-secured AP; my AP is using WPA2-Personal (AES+TKIP, though I tried just AES with no change in the results).

Disregard previous message -- the connection stayed up longer without wireless encryption, but it eventually suffered the usual Reason 6 error as well.

Fed up with trying to make the on-board RealTek chip work, I acquired a wireless USB device...which exhibits the exact same problems. It's a Ralink device, rather than RealTek, using a completely separate driver. I've also tried using the upstream 3.4 rc6 kernel (3.4.0-030400rc6-generic) to no apparent (positive) effect.

At this juncture, I do not believe the issue to be related to the drivers or devices. I have another laptop (also Lenovo, but a T61 rather than an E525) running 12.04 64-bit (3.2.0.25-generic kernel) as well, using the Intel wireless chip, and it does not experience these issues, so it does not appear to be something related to an interaction between 64-bit Precise and the router.

Is everyone on this bug using 64-bit? Does anyone experience the issues with 32-bit?

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lsusb from the new Ralink USB adapter:
===============================
Bus 001 Device 002: ID 148f:3070 Ralink Technology, Corp. RT2870/RT3070 Wireless Adapter
Device Descriptor:
  bLength 18
  bDescriptorType 1
  bcdUSB 2.00
  bDeviceClass 0 (Defined at Interface level)
  bDeviceSubClass 0
  bDeviceProtocol 0
  bMaxPacketSize0 64
  idVendor 0x148f Ralink Technology, Corp.
  idProduct 0x3070 RT2870/RT3070 Wireless Adapter
  bcdDevice 1.01
  iManufacturer 1 Ralink
  iProduct 2 802.11 n WLAN
  iSerial 3 1.0
  bNumConfigurations 1
  Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 67
    bNumInterfaces 1
    bConfigurationValue 1
    iConfiguration 0
    bmAttributes 0x80
      (Bus Powered)
    MaxPower 450mA
    Interface Descriptor:
      bLength 9
      bDescriptorType 4
      bInterfaceNumber 0
      bAlternateSetting 0
      bNumEndpoints 7
      bInterfaceClass 255 Vendor Specific Class
      bInterfaceSubClass 255 Vendor Specific Subclass
      bInterfaceProtocol 255 Vendor Specific Protocol
      iInterface 5 1.0
      Endpoint Descriptor:
        bLength 7
        bDescriptorType 5
        bEndpointAddress 0x81 EP 1 IN
        bmAttributes 2
          Transfer Type Bulk
          Synch Type None
          Usage Type Data
        wMaxPacketSize 0x0200 1x 512 bytes
        bInterval 0
      Endpoint Descriptor:
        bLength 7
        bDescriptorType 5
        bEndpointAddress 0x01 EP 1 OUT
        bmAttributes 2
          Transfer Type Bulk
          Synch Type None
          Usage Type Data
        wMaxPacketSize 0x0200 1x 512 bytes
        bInterval 0
      Endpoint Descriptor:
        bLength 7
        bDescriptorType 5
        bEndpointAddress 0x02 EP 2 OUT
        bmAttributes 2
          Transfer Type Bulk
          Synch Type None
          Usage Type ...

AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu10
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 1: Generic_1 [HD-Audio Generic], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: mcc 1927 F.... pulseaudio
 /dev/snd/controlC0: mcc 1927 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Generic'/'HD-Audio Generic at 0xf0b44000 irq 47'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,00aa0100,00100200'
   Controls : 6
   Simple ctrls : 1
Card0.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Card1.Amixer.info:
 Card hw:1 'Generic_1'/'HD-Audio Generic at 0xf0b40000 irq 16'
   Mixer name : 'Conexant CX20590'
   Components : 'HDA:14f1506e,17aa21ea,00100002'
   Controls : 8
   Simple ctrls : 5
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown'
   Mixer name : 'ThinkPad EC (unknown)'
   Components : ''
   Controls : 1
   Simple ctrls : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=b9f78d7b-be8e-4156-8010-a2cfb0b79e36
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MachineType: LENOVO 12002LU
NonfreeKernelModules: fglrx
Package: linux (not installed)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-26-generic root=UUID=cb82d0af-3338-47c5-9e83-e95a82673440 ro reboot=pci quiet
ProcVersionSignature: Ubuntu 3.2.0-26.41-generic 3.2.19
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-26-generic N/A
 linux-backports-modules-3.2.0-26-generic N/A
 linux-firmware 1.79
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
Tags: precise precise
Uname: Linux 3.2.0-26-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip fuse lpadmin netdev plugdev sambashare sudo
dmi.bios.date: 12/06/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: GBET02WW(1.02)
dmi.board.asset.tag: Not Available
dmi.board.name: 12002LU
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrGBET02WW(1.02):bd12/06/2011:svnLENOVO:pn12002LU:pvrThinkPadE525:rvnLENOVO:rn12002LU:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 12002LU
dmi.product.version: ThinkPad E525
dmi.sys.vendor: LENOVO

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I just plugged the Ralink USB adapter into my (otherwise working) ThinkPad T61 (as mentioned, also running 12.04 64-bit) and it started providing Reason 6 disconnects as well (wlan1). The Intel wireless adapter (wlan0) continues to encounter no Reason 6 issues.

Is it possible BOTH Ralink and RealTek drivers are encountering the same trouble?

For all Thinkpad users, precisely L420 series, I had this problem for about half-year now, no suggestion works, neither the driver from realtek nor changing kernel versions.

The general problem appears to be if the signal is weak around 50% it starts to go nuts.

Best suggestion? If you can replace the laptop, if you don't have a warranty and maybe want a faster option just buy a Intel® Centrino® Advanced-N 6205 costs about 20$ works nicely with Lenovo laptops takes 5min to install.

Good luck to everybody ;)

On a lark, I tried the latest Live CD version of Linux Mint 13 + Cinnamon.

Same Reason 6 error there, too. Same terrible connection fidelity.

I tried to use the kernel 3.2.21 from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=M;O=D

I tried disabling the n radio as explained here http://askubuntu.com/questions/41259/how-to-disable-n-wireless-mode-rtl8192on-a-thinkpad-edge-15-core-i5
but doesn't work:

sudo iwconfig wlan0 modu 11g
Error for wireless request "Set Modulation" (8B2F) :
    SET failed on device wlan0 ; Operation not supported.

What are the recommendations to get this adaptor working?
It doesn't seem realtek provides the linux drivers for kernels higher than 3.0 :-(

My chip is part of my xs36v HTPC (like xs35v3 with no DVD/BR player).

Any additional ideas?

thanks

FYI:

03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/
n WiFi Adapter (rev 01)
 Subsystem: Realtek Semiconductor Co., Ltd. Device 8175
 Flags: bus master, fast devsel, latency 0, IRQ 19
 I/O ports at d000 [size=256]
 Memory at dfd00000 (64-bit, non-prefetchable) [size=16K]
 Capabilities: [40] Power Management version 3
 Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
 Capabilities: [70] Express Endpoint, MSI 00
 Capabilities: [100] Advanced Error Reporting
 Capabilities: [140] Virtual Channel
 Capabilities: [160] Device Serial Number 01-91-81-fe-ff-4c-e0-00
 Kernel driver in use: rtl8192ce
 Kernel modules: rtl8192ce

Someone meantioned that the wifi works ok with quantal aplha 1. Have someone been able to test it?

Same issue here on a Toshiba C850 using Realtek rtl_92* driver. WLAN won't connect consistently, and when it does it drops after a minute.
Info:

sudo lspci -v
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
 Subsystem: Toshiba America Info Systems Device ff1e
 Flags: bus master, fast devsel, latency 0
 Capabilities: [e0] Vendor Specific Information: Len=0c <?>

00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) (prog-if 00 [Normal decode])
 Flags: bus master, fast devsel, latency 0
 Bus: primary=00, secondary=01, subordinate=06, sec-latency=0
 I/O behind bridge: 00004000-00004fff
 Memory behind bridge: c0000000-c0ffffff
 Prefetchable memory behind bridge: 00000000b0000000-00000000bfffffff
 Capabilities: [88] Subsystem: Toshiba America Info Systems Device ff1e
 Capabilities: [80] Power Management version 3
 Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
 Capabilities: [a0] Express Root Port (Slot+), MSI 00
 Capabilities: [100] Virtual Channel
 Capabilities: [140] Root Complex Link
 Kernel driver in use: pcieport
 Kernel modules: shpchp

00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04) (prog-if 30 [XHCI])
 Subsystem: Toshiba America Info Systems Device ff1e
 Flags: bus master, medium devsel, latency 0, IRQ 42
 Memory at c1200000 (64-bit, non-prefetchable) [size=64K]
 Capabilities: [70] Power Management version 2
 Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+
 Kernel driver in use: xhci_hcd

00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04)
 Subsystem: Toshiba America Info Systems Device ff1e
 Flags: bus master, fast devsel, latency 0, IRQ 43
 Memory at c1214000 (64-bit, non-prefetchable) [size=16]
 Capabilities: [50] Power Management version 3
 Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+
 Kernel driver in use: mei
 Kernel modules: mei

00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04) (prog-if 20 [EHCI])
 Subsystem: Toshiba America Info Systems Device ff1e
 Flags: bus master, medium devsel, latency 0, IRQ 16
 Memory at c1219000 (32-bit, non-prefetchable) [size=1K]
 Capabilities: [50] Power Management version 2
 Capabilities: [58] Debug port: BAR=1 offset=00a0
 Capabilities: [98] PCI Advanced Features
 Kernel driver in use: ehci_hcd

00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04)
 Subsystem: Toshiba America Info Systems Device ff1e
 Flags: bus master, fast devsel, latency 0, IRQ 44
 Memory at c1210000 (64-bit, non-prefetchable) [size=16K]
 Capabilities: [50] Power Management version 2
 Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
 Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
 Capabilities: [100] Virtual Channel
 Capabilities: [130] Root Complex Link
 Kernel driver in use: snd_hda_intel
 Kernel modules: snd-hda-intel

00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4) (prog-if 00 [No...

Same device on same laptop works optimally in Windows 7 64.
Additional info: This is what I get from lspci -vv when it disconnects:

08:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
 Subsystem: Realtek Semiconductor Co., Ltd. Device 8212
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 64 bytes
 Interrupt: pin A routed to IRQ 17
 Region 0: I/O ports at 2000 [size=256]
 Region 2: Memory at c1000000 (64-bit, non-prefetchable) [size=16K]
 Capabilities: [40] <chain broken>
 Kernel driver in use: rtl8192ce
 Kernel modules: rtl8192ce

Still no brilliant ideas on my end.

New notes since my last comments:

1) I have elected to return to the Ralink USB adapter, since it was exhibiting the same trouble, independent of which Ubuntu machine it was attached to.

2) The RealTek adapter connects without issue on my wireless G network at work (WPA2). I believe I tried the wireless N network and encountered the same trouble as on my home (WPA2) network and the wifi connection on the train (unsecured). I will attempt to gather more information about the work network next time I am in the office (Friday) to see how it differs from my home network configuration.

3) Despite the home network being configured for G-only, iwconfig shows 802.11bgn on the laptop with the RealTek driver and 802.11abg on the laptop using iwl3945 (and working fine). I am very suspicious that this issue relates to Wireless-N in some way, but that is largely a hunch gathered from reading everything I can about anyone else experiencing issues with their wireless connections on either a ThinkPad or with a RealTek wireless adapter that uses Ubuntu. Is it possible to restrict a connection (e.g. wlan0) from using one of the bands, so that it is *only* 802.11bg, for instance?

Is this still an issue in 3.2.0-26?

it will be a good day when this is fixed

On Wed, Jul 4, 2012 at 8:48 AM, CaptSaltyJack <email address hidden>wrote:

> Is this still an issue in 3.2.0-26?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/902557
>
> Title:
> Wireless not working in 12.04 for rtl8192ce (RTL8188CE)
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/902557/+subscriptions
>

--
Arno

CaptSaltyJack: Yes, still an issue in 3.2.0-26. Also an issue in 3.4 alpha 6, last I checked.

Hello
Sorry for my English (translated with google)
Here is the latest realtek driver from the month of May to compile:

http://ubuntuone.com/2BDt3O2YqZv8QDqQWoZshQ

Cross-posting from the Ubuntu Forums thread -- I tried the new driver. Other than improving the signal strength when the connection is up, it does not improve the stability of the connection or the spate of Reason 6 errors.

For the first time my RTL8188CE works great on 3.2/12.04.1 with the version 0006.0514.2012

On 09/02/2012 11:35 AM, Launchpad Bug Tracker wrote:
> You have been subscribed to a public bug by Ekimia (u-contact-ekimia-fr):
>
> Wireless no longer seems to work since I upgraded to Precise, it was working (albeit very flaky) ion 11.10, but it never seems to be able to connect to any access points since the upgrade.
> It can see all the available networks, but it can't seem to connect to any of them.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 12.04
> Package: linux-image-3.2.0-3-generic-pae 3.2.0-3.9
> ProcVersionSignature: Ubuntu 3.2.0-3.9-generic-pae 3.2.0-rc4
> Uname: Linux 3.2.0-3-generic-pae i686
> AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
> ApportVersion: 1.90-0ubuntu1
> Architecture: i386

I have no idea what is wrong as that kernel version worked for me; however, this
driver has undergone substantial changes since kernel 3.2. Add compat-wireless
to this kernel, and it will work. If c-w is not possible, you should at least
have something later than 3.2.0. The current version is 3.2.28.

@Larry : We tested cw-3.3 without any success. only the new "underground" version from Realtek correct the issues.

Do you know if this version 0006.0514.2012 will be integrated soon ?

it seems There are several Cards with 8188CE and only the newer ones have this problem, the new one has the Bluetooth 4.0 integrated.

On 09/02/2012 11:54 AM, Ekimia wrote:
> @Larry : We tested cw-3.3 without any success. only the new
> "underground" version from Realtek correct the issues.
>
> Do you know if this version 0006.0514.2012 will be integrated soon ?
>
> it seems There are several Cards with 8188CE and only the newer ones
> have this problem, the new one has the Bluetooth 4.0 integrated.

What are the markings on this card? I have two kinds of RTL8188CE that Realtek
sent me. The newer one is labeled RTL8188CE-VL. Is that the one?

I am in the process of integrating the RTL8723AE driver from that version. I
have not explored any changes in the other drivers.

Larry

persists in quantal 12.10 beta 2 (3.5.0-17-generic)

(I'll buy a new half size mini PCIe card I think)

Could this be helpful? Debian provides some firmware files: http://wiki.debian.org/rtl819x

All firmware files for Realtek devices are in the linux-firmware git repo. Surely Ubuntu provides this as a standard package. I know that openSUSE and Fedora both do.

There is a patch that was merged into kernel 3.7 and is being backported into all the stable kernels to detect a so-called B-Cut of the RTL8188CE cards. This patch helps a number of those cards. In addition, there is another patch that implements full support for all these cards, but it did not make the merge for 3.7. Furthermore, it will not be backported as it is too invasive. Users with this card should be able to get full support using kernel 3.8 or compat-wireless packages from November 1, 2012 or later. Of course, that date is just a guess.

@Larry , just installed the 0006.0514.2012 driver on a 12.04.1 with a RTL8188CE 802.11b/g/n WiFi Adapter (rev ff) with success.

Can't we just make a DKMS of it , instead of installing backported modules ?

I've been testing this device:

02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
 Subsystem: Realtek Semiconductor Co., Ltd. Device 8175

The drivers provided with Precise are very unreliable. Same fault as above, either it won't connect to the network at all, or it connects and works for a short while and then fails (drops the network and can't rejoin). I could reliably reproduce this by flood-pinging the default gateway over wireless, which caused the card to crash within 5 minutes.

I also had stability problems with the 0006.0514.2012 drivers. However Realtek has just released a new driver version, 0007.0809.2012, which I have found to be rock solid. Tested flood pinging for several hours with no disconnect. I think they've finally fixed the issues with this device.

I built a DKMS package and tested it on Precise and it works well. You can build and install the package like this:

git clone git://github.com/aptivate/linux-ischool-classmate.git
cd rtl8192ce-dkms/r8192ce-0007.0809.2012-1~classmate~121102~1cw
debuild -i -us -uc -b
dpkg -i ../r8192ce_0007.0809.2012-1~classmate~121102~1cw_all.deb

The changes in vendor driver 0007.0809.2012 are the ones that were merged into the wireless-testing git repo on October 30. Accordingly, they are in any compat-driver (formerly compat-wireless) package later than November 1.

Thanks, any idea where I can find compat-driver packages (ideally for lucid)?

The package would be for the kernel, in general, and not for any specific distro release.

Although the patch has been pushed from wireless-next to net-next, it does not seem to have made it into linux-next yet. When it does, you should be able to get it through https://backports.wiki.kernel.org/index.php/Main_Page. At the moment, the promised packaging of compat-drivers is not yet ready.

So "compat-driver packages" are actually not Ubuntu packages at all?

In that case I think the most convenient way to get (and maintain) this driver is still via the DKMS package that I posted, and not via building compat-wireless from source (which seems to be approximately undocumented and pretty hacky at the moment).

I'm wondering why you recommend/suggest using compat-wireless?

FYI, I am not a Ubuntu developer or user. I have no idea what constitutes a package for Lucid, nor do I care.

You are the one that asked about about the compat-driver packages, which are the way to get the latest version of the kernel drivers. You can, of course, do whatever you want, or even wait for kernel 3.8 to find its way into Ubuntu.

Also affects Quantal. The problem is still here.

@gcc : I'm forking now your github to make it work with 0bda:8723 rtl8723e ( only firmware copying was missing)

in a general way, where would be the best place for this dkms sources and binairies to be so anybody could easily install them ?

I mean for a 12.04 ubuntu user this updated dkms package is just the best solution for quick enablement of the hardware

@u-contact-ekimia-fr: I'm guessing a PPA would be the easiest way for users to get these drivers. However I don't feel particularly inclined to make one myself, because interacting with Launchpad always makes me feel that I'd rather be sticking forks in to my eyes.

Perhaps asking people to clone a github repo and run one command to build their DKMS package is not so bad. Or we could just include a binary package (since there are no actual binaries, it should install on any system) that people can download and install.

I can confirm that the instructions in #166 fix this issue for me.

#166 did NOT fix the issue for me. I tried downloading and compiling the new drivers (locally; didn't use the git-clone/dpkg method mentioned), but am still experiencing the exact same issue with "Reason 6" messages and ~11% packet loss.

Can someone who found success with the new drivers confirm the modinfo output for rtlwifi, rtl8192c_common, and rtl8192ce? I wonder if I'm not actually using the new version in some fashion. Specifically I'm looking at the vermagic and srcversion fields. Here are the values I see:

vermagic: 3.5.0-18-generic SMP mod_unload modversions

rtlwifi
srcversioon: 2AC06C61F93E696805BCECF

rtl8192c_common
srcversion: 24B51EB0237E20316F14361

rtl1829ce
srcversion: B369CDF8525EA1B519D389F

Ubuntu 12.10 64-bit

I'm just a casual user and don't really know what I'm doing but here are outputs for things you requested.

justin@willie:~$ modinfo rtlwifi
filename: /lib/modules/3.2.0-32-generic/updates/dkms/rtlwifi.ko
description: Realtek 802.11n PCI wireless core
license: GPL
author: Larry Finger <email address hidden>
author: Realtek WlanFAE <email address hidden>
author: lizhaoming <email address hidden>
srcversion: 5EE6168D1B4BBA473F6CCD0
depends: mac80211,cfg80211
vermagic: 3.2.0-32-generic SMP mod_unload modversions
justin@willie:~$ modinfo rtl8192c_common
filename: /lib/modules/3.2.0-32-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192c/rtl8192c-common.ko
description: Realtek 8192C/8188C 802.11n PCI wireless
license: GPL
author: Larry Finger <email address hidden>
author: Ziv Huang <email address hidden>
author: Georgia <email address hidden>
author: Realtek WlanFAE <email address hidden>
author: lizhaoming <email address hidden>
srcversion: 6B1F1667933740748AE6E8D
depends: mac80211
intree: Y
vermagic: 3.2.0-32-generic SMP mod_unload modversions
justin@willie:~$ modinfo rtl1829ce
ERROR: modinfo: could not find module rtl1829ce

I have a thinkpad X230 and lspci tells me I have a realtek RTL8188CE.

Also, I'm on ubuntu 12.04 64-bit.

@Ryan McClure : What is the rev of your card ? there are at least 3 : 01, 05 , and ff . Check with lspci

@mcc-mcc3d here are my modinfos:

admin@classmate:~$ modinfo rtlwifi
filename: /lib/modules/3.0.0-26-generic-pae/updates/dkms/rtlwifi.ko
description: Realtek 802.11n PCI wireless core
license: GPL
author: Larry Finger <email address hidden>
author: Realtek WlanFAE <email address hidden>
author: lizhaoming <email address hidden>
srcversion: 5EE6168D1B4BBA473F6CCD0
depends: mac80211,cfg80211
vermagic: 3.0.0-26-generic-pae SMP mod_unload modversions 686

admin@classmate:~$ modinfo rtl8192c_common
filename: /lib/modules/3.0.0-26-generic-pae/kernel/drivers/net/wireless/rtlwifi/rtl8192c/rtl8192c-common.ko
description: Realtek 8192C/8188C 802.11n PCI wireless
srcversion: 5BEBCA88BB9E24BF68DA368
vermagic: 3.0.0-26-generic-pae SMP mod_unload modversions 686

admin@classmate:~$ modinfo rtl8192ce
filename: /lib/modules/3.0.0-26-generic-pae/updates/dkms/rtl8192ce.ko
firmware: rtlwifi/rtl8192cfw.bin
description: Realtek 8192C/8188C 802.11n PCI wireless
srcversion: DD4F3D83A75531AC98862F2
vermagic: 3.0.0-26-generic-pae SMP mod_unload modversions 686

@Ekimia: Rev 01.

Is there some field other than srcversion I should be checking to verify whether or not I'm using the new driver?

Just after I posted that, it dawned on me to just check the file date of the .ko file listed in modinfo. Sure enough, I'm using the drivers from /lib/modules/3.5.0-18-generic/updates/cw-3.6 (file date in mid-October) instead of /lib/modules/3.5.0-18-generic/kernel/drivers/net/wireless, which have the correct file date (yesterday).

Is there a particular mechanism I should use, other than just renaming/deleting/otherwise-doing-probably-bad-things the offending drivers in the cw-3.6 directory, to make the kernel driver preferred over the other?

@mcc-mcc3d: something (maybe DKMS) has placed drivers in the updates directory, which have precedence over the kernel directory, which is normally reserved for the drivers that come with the kernel. I don't know how to tell modprobe to ignore the updates directory, and I don't think it makes sense to do so (it would be like telling your Ubuntu to downgrade all your packages to the oldest version available).

If you can work out how the drivers in updates/cw-3.6 got there, you might be able to remove them, e.g. using dkms status and dkms uninstall, or removing a .deb package. Otherwise you could just delete that directory.

Ideally any drivers you install should not overwrite the standard drivers in the kernel directory. compat-drivers seems to try to write to the updates directory, but perhaps you ran it with a command line option that overrides that, or built a new kernel from source, or manually copied drivers into the kernel directory?

Okay, I uninstalled compat-wireless and restarted the system. modinfo rtlwifi, et. al. now show each of the modules pointing at the correct driver file, with the expected file date of yesterday.

However, I'm still getting ~10% packet loss even with the new driver, and still seeing a ton of Reason 6 deauthentication messages (the reason for the 10% packet loss) in my syslog.

srcversion for rtlwifi and rtl8192ce are identical to my previous post.

Tried with both swenc=1 and with no options specified at all in rtl8192ce.conf.

@mcc-mcc3d: I think I understand from your previous posts that you're now using drivers from compat-wireless 3.6 (updates/cw-3.6 directory), is that correct?

The latest fixes are not in that version, so I'm not surprised that you're still having problems.

Please could you try to remove whatever created the updates/cw-3.6 directory, or if necessary just move that directory out of the way.

Then please install the latest Realtek drivers, either using their 0007.0809.2012 source code packeg or my DKMS package from #166, build and install those modules, check that you're using them instead of updates/cw-3.6 and see if the problem has disappeared.

I had installed compat-wireless yesterday, but uninstalled it between #182 and #184 (as mentioned in the first line of #184). The drivers I'm presently using are ones I compiled yesterday from the RealTek website's download section, with version 0007.*

To ensure that having compat-wireless installed did not do something strange to the drivers, I just repeated the make / make install process and restarted the system once more. The issues remain.

@mcc-mcc3d, is your modprobe still loading the drivers from the updates/cw-3.6 directory? if so, installing compat-wireless/compat-drivers might have no effect. You need to try to get rid of the updates/cw-3.6 directory somehow. Maybe try checking whether it's part of a debian package with dpkg -S, and if so, remove that package.

No, modprobe is not pointing at that folder. As I said in #184, "modinfo rtlwifi, et. al. now show each of the modules pointing at the correct driver file, with the expected file date of yesterday."

Uninstalling compat-wireless did remove the cw-3.6 directory completely.

modinfo rtlwifi
filename: /lib/modules/3.5.0-18-generic/kernel/drivers/net/wireless/rtlwifi/rtlwifi.ko
description: Realtek 802.11n PCI wireless core
license: GPL
author: Larry Finger <email address hidden>
author: Realtek WlanFAE <email address hidden>
author: lizhaoming <email address hidden>
srcversion: 5EE616D1B4BBA473F6CCD0
depends: mac80211,cfg80211
vermagic: 3.5.0-18-generic SMP mod_unload modversions

modinfo rtl8192ce
filename: /lib/modules/3.5.0-18-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192ce/rtl8192ce.ko
firmware: rtlwifi/rtl8192cfw.bin
description: Realtek 8192C/8188C 802.11n PCI wireless
license: GPL
author: Larry Finger <email address hidden>
author: Realtek WlanFAE <email address hidden>
author: lizhaoming <email address hidden>
srcversion: DD4F3D83A75531AC98862F2
alias: pci:v000010ECd000081776sv*sd*bc*sc*i
alias: pci:v000010ECd000081777sv*sd*bc*sc*i
alias: pci:v000010ECd000081778sv*sd*bc*sc*i
alias: pci:v000010ECd000081791sv*sd*bc*sc*i
depends: rtlwifi,mac80211
vermagic: 3.5.0-18-generic SMP mod_unload modversions
parm: swlps:bool
parm: swenc:using hardware crypto (default 0 [hardware])
 (bool)
parm: ips:using no link power save (default 1 is open)
 (bool)
parm: fwlps:using linked fw control power save (default 1 is open)
 (bool)

Nov 14 13:39 rtlwifi.ko (generic driver)
Nov 14 13:39 rtl8192ce.ko (specific driver)
Nov 15 12:20 rtl8192cfw.bin (firmware)

You are using the vendor driver. The version built into the kernel would have a module parameter named "debug" that would show up in the modinfo output output for rtl8192ce.

The vendor driver is what I want to be using, isn't it -- the newest one direct from RealTek?

Tried the DKMS solution in #166 with my 12.10 system, but now get kernel panics as soon as the network link is established (now booting from live CD and am trying to repair the system). The last entries in the syslog:

kernel: [ 18.336282] wlan0: associated
kernel: [ 18.336945] cfg80211: Calling CRDA for country: DE
NetworkManager[1217]: <info> (wlan0): supplicant interface state: associating -> associated
kernel: [ 18.338747] cfg80211: Updating information on frequency 2412 MHz for a 20 MHz width channel with regulatory rule:

I did have to use --force-overwrite when installing the DKMS package, as some files already existed from the linux-firmware package.

Let me know what info you need for further debugging. I'm able to use the card with the default 12.10 driver, but from time to time I get package losses up to 50 %.

@samuel-6nk, please report that to Realtek, I just packaged their driver.

on acer 725 rtl8188ce same problem with 1204 and with mint equivalent. pls take a look at

http://askubuntu.com/questions/192873/toshiba-satellite-c850-wlan-rtl8188ce-not-working

I just finished successfuly compiling and installing rtl8188ce driver indicated on the url above. first, download the driver (url above) and extract it.

VV important, BEFORE compiling the new driver (in addition to above url instructions) pls do

sudo rmmod rtl8188ce

and just to be on the safe side, blacklist also on /etc/modprobe.d/blacklist.conf

rtl8188ce
rtlwifi

then reboot. lsmod will not show rtl8188ce and rtlwifi (just check). then navigate in a terminal to the extracted folder and continue with

make
make install
reboot

as indicated in url. the driver is not activated yet. in a terminal just UNBLACKLIST rtl8188ce and rtlwifi (just place a # in front of these lines in blacklist.conf). the newly compiled/installed driver will be activated. if no indicator light yet just rebbot and all should be ok.

sorry, did not mention on the prev post - the new driver/wifi works flawless, for 2 days now,

until ..... a new kernel is installed. will the newer kernels have this new rtl driver buit in ? it would really be great.

Ive tried all that and problem still persist see

http://askubuntu.com/questions/231466/x230-tablet-realtek-8192ce-connects-to-router-but-no-internet

~/rtl8192ce-dkms/r8192ce-0007.0809.2012-1~classmate~121102~1cw$ debuild -i -us -uc -b
debuild: fatal error at line 627:
cannot find readable debian/changelog anywhere!
Are you in the source code tree?

Well I guess.
Also, in light of samuels comment, I think I'd rather just play on the safe side and not try that approach anyway. Flakey wireless drivers are better than kernel panics

Toshiba Satellite C875-S7304 running a Realtek RTL8188CE.

I have followed this thread for some time and have tried most every suggestion contained within to resolve my issue with limited success. I just wanted to pass on that I have had no issues running Ubuntu 13.04 and LinuxMint 14 with my card. Out of the box, wireless worked with both distros.

My latest testing was with LinuxMint 14. I tested for 3 days where I did not power down the laptop. I have run regular speed tests and still see upwards of 18Mbps which exceeds my subscribed connection speed (sadly). Previously, when I could get the card to work, I would see drastic slow downs after a couple hours at best, never going above 1Mbps and experiencing heavy packet loss.

I certainly understand that not everyone will want to change to one of these especially since Ubuntu 13.04 is in beta as of this posting but I wanted to put out the info for those still seeking a solution. I am confused as to why my card will not work with Ubuntu 12.10 but will with LinuxMint 14 since it is based on 12.10.

Just wanted to take second to thank everyone posting on this issue for your time to try to help us resolve this.

I have recently found this article (http://www.webupd8.org/2013/01/fix-wireless-or-wired-network-not.html) and it seems to solve the issue for me. It's been 3 or 4 days since I followed the instructions and so far the network connection after resume has been perfect.

Lenova Thinkpad e430 edge

Wireless Network Interface card - RTL8192CE

I can also confirm this bug on any kernel newer than 3.2.0-23. The distro does NOT make any difference, every ubuntu spin(have not tried mint linux), fedora, arch.
The easiest fix for me was to lock my kernel version to 3.2.0-23, which work flawlessly. I'm waiting and hoping for a integrated fix with kernel 3.8.x.x.

Looks like that there is a new version available on the Realtek site: 0010.0109.2013
Can someone test? I have no Ubuntu at the moment because wifi was so flaky, even with the version from for dkms.

Tried the RTL8192CE driver shipping with mainline kernel 3.8.0-030800rc4; still same behaviour as with all other kernels and patched modules I've tried (no disconnects, but high amounts of packet loss no matter the WLAN configuration on the router). I ended up getting a ath9k card, which works flawlessly in the same WLAN (also in 150 Mbit mode) under all kernels.

I just purchased an Asus PCE-N15 card which relies on the same driver and I was experiencing litterally very little connection (if at all). From all I have read, downloading the drivers available directly on the Asus site will not work.

I have somehow (and really mean somehow cause I'm not that technical) managed to get a WAY better connection after fiddling around with the connection settings. Hopefully this helps someone (and may help me next time I do a fresh install).

Under --> Edit connections --> Wireless --> *Select Nework --> Edit --> Change mode under wireless tab from 'Infrastructure' to 'Ad-hoc', leaving everything set to 'automatic'. I also have my IPv6 settings to 'ignore' from habbit due to all my ndiswrapper issues I previously had.

I do not know if the new rtl8192cfw.bin file in the latest vendor driver will make any difference as I have not tested with it. Please test and report back.

The new firmware posted in #203 seems to work just fine for me, on 3.5.0-23-generic amd64.

Thanks for the report, but I don't see that you were one of the people with a problem.

Does it fix anyone's problem?

I have installed the new driver, confirmed that it is being used (or, at least, that the date on the driver in /lib/modules/3.5.0-23-generic/ that matches the name of the driver listed in lspci -v matches today's date), and can at least report that it does not offer worse performance (that is, I am still able to connect and function on my work's wireless network).

I will test it at home (which is where I experience the issues) and report back this evening.

No improvement with the new driver/firmware. Still seeing 10-20% packet loss, due to Reason 6 dissociation errors.

What new driver? All that was changed was the firmware. Did you do something else?

This is the file listed on RealTek's website in their download section, to which I thought you referred in comment #203.

Linux driver for kernel 2.6.24 (and later) 0011.0128.2013 2013/1/28 12823k

I downloaded this driver and ran make, make install.

Just a clue, but i remeber that my WLAN Router (TP-Link 1043ND) hangs several times when i am under linux. In Windows the router never freezes.

Maybe this bug only occurs specific routers and there is something in the realtek driver that breaks a specification.

Ryan: If the latest vendor driver fails due to Reason 6 disassociation problems, then I probably will not be able to fix it. That certainly will need help from Realtek. What is the make/model of your AP?

Sirius1977: Most of the details of interaction with the AP are controlled by mac80211, not the driver. I do not have one of those routers, nor can I justify the $60 for one on E-bay. I will ask the factory if they have one for testing.

Hi all,

i installed the new point release of precise 12.04.2. And then i installed the driver package from the realtek site (0012.0207.2013). It seems that it works now. No more disconnects no slow downs for me. A look in the release notes shows, that they added antenna diversity for 8188ee, maybe thats why it no longer disconnects.

Would be great if someone makes a dkms from it.

regards

Just how do you think that adding antenna diversity for the rtl8188ee is going to help a totally different device? That change has no more effect than the changes in the driver card for your video device..

I am currently reviewing the differences between the 2013.02.07 driver and the one that was used to port the drivers to the kernel, but I have no idea how long it will take to stabilize that code. At the moment, it causes the system to freeze! Good luck!

@Larry: Ooops, it's ee not ce. However, something has changed because i have no slowdowns anymore. And only 1 really fast reconnect. Is it possible that there is a change the 3.5 kernel that helps us? I thought that the use of diversity is responsible for the better connection but when it's not for out device then it must be something different.

However, thank you Larry that you are here to help us with our crappy wireless card!

I've been having issues with the realtek wireless on my Toshiba Satellite L645 running lubuntu 12.10.

I want to try and install the latest driver from realtek's website, 0012.0207.2013 - http://www.realtek.com.tw/DOWNLOADS/downloadsView.aspx?Langid=1&PNid=21&PFid=48&Level=5&Conn=4&DownTypeID=3&GetDown=false&Downloads=true#2722 -, but would prefer not to do it from source. There is a ppa for realtek drivers, but it hasn't been updated in a while: https://launchpad.net/~lexical/+archive/hwe-wireless

Are there any other methods of installing the driver without installing from source? I'm mainly worried about how it will interact with linux-backports-modules-cw-3.6-quantal-generic and making sure that if I need to uninstall it, I can do it successfully.

Is there another PPA that supplies this driver?

upgrade to raring, kernel updates to 3.8.0-14-generic, but rtl8192ce still not work right, after frustrating, plug a usb wireless card, which works fine. Is this a bug in the original realtek driver or something, do these guys know about this problem, it affectes the normal use of the wifi.

Yep, I've been keeping a usb wireless card with my laptop at all times because of this issue. The connection through the realtek is very sketchy.

There is a major update of all the rtlwifi drivers that was submitted last Sunday evening. If accepted, those 25 patches should be in the latest compat-drivers in about 2 weeks. If you cannot wait, those patches are in the linux-wireless archives in a form that can be applied to the wireless-testing git repo.

On 03/27/2013 03:09 AM, Larry Finger wrote:
> There is a major update of all the rtlwifi drivers that was submitted
> last Sunday evening. If accepted, those 25 patches should be in the
> latest compat-drivers in about 2 weeks. If you cannot wait, those
> patches are in the linux-wireless archives in a form that can be applied
> to the wireless-testing git repo.
>
I actually had to enable dns relay on the routers I used in order to
keep the wireless working. Im sure each situation is different but if
you have dns relay capability on your router it may be a possible
solution for you.

Any chance those updates will be intergrated in 13.04 Final ?

I also have Realtek RTl8188CU. As a card and as a usb adaper.

Once kernel 3.10 is released, those changes will be in it. Otherwise, you need to build a kernel using the wireless-testing git repo.

Ubuntu 13.04 still has the problem. im using ASUS PCE-N15, rtl8192ce driver.
as Larry suggested, i've tried latest compat-drivers-3.9-rc4-2-su yesterday and selected new rtlwifi to install.
at first it seems the new driver solved the problem, but connection is still very-very unstable and got lost every few minutes.

Would love to switch to linux but I'm stuck with Windows until this is fixed :( Doesn't seem like I will ever get the opportunity since this bug was reported in 2011 and still isn't fixed..

@karneseric
Providing drivers is really up to the manufacturer.

You might have better luck exchanging the WLAN card for a supported moddel if you can.

Someone in the French Ubuntu usergroup created a package with a DKMS
version of the drivers (see http://doc.ubuntu-fr.org/wifi_realtek_rtl8192ce)
Here is the download link: http://ubuntuone.com/5lXovIEjNfiZLmN59Rx9Wp

I have them running on a bunch of Intel classmates at the moment. They seem
to work fine and survived the upgrade from kernel 3.2.0-40-generic to
3.2.0-41-generic.

2013/5/17 Uli Tillich <email address hidden>

> @karneseric
> Providing drivers is really up to the manufacturer.
>
> You might have better luck exchanging the WLAN card for a supported
> moddel if you can.
>
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> Title:
> Wireless not working in 12.04 for rtl8192ce (RTL8188CE)
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