Fedora
network-manager package

NM randomly dis- and reconnects Wi-Fi; wicd doesn't

Bug #484366 reported by Jayson Williams
22
This bug affects 4 people
Affects Status Importance Assigned to Milestone
network-manager (Debian)
New
Undecided
Unassigned
network-manager (Fedora)
New
Undecided
Unassigned
network-manager (Ubuntu)
Fix Released
Undecided
Unassigned

Bug Description

Binary package hint: network-manager

Package: network-manager (most recent ubuntu 9.10 version)
Ubuntu release: 9.10
Expecting solid consistent WiFi network connection while connected to a wireless DSL router.
Experiencing random network connection drops, with the connection reestablishing withing a few seconds

I have two linux systems connected to the internet through the same router. A Nokia N810 running meamo linux, and an HP running Kubuntu 9.10. Over the course of an hour, the Ubuntu 9.10 system drops network connection on an average of 8-30 times. The higher the transfer rate, the more drops occur. The connection is usually reestablished within 5 seconds. During the same hour the maemo linux system never drops network connection.

After trying several solutions found on the internet, with no success, I replaced network-manager with wicd 1.6.1-3ubuntu1.

While using wicd, I have not experienced any problems with network connection dropping. I believe there is a problem with network-manager.

Revision history for this message
Colin Harrington (colin-harrington) wrote :

I am also experiencing this issue on Lucid/10.04. My connection drops after ~4 minutes and it prompts me to reconnect. I have lots of other devices (phones, Windows laptop and 2 other Ubuntu 9.10 laptops that all work seamlessly with my wireless network. I also dual-boot the affected machine and it works seamlessly with the same network with OSX.

I can confirm that using wicd made my issue go away.
See http://ubuntuforums.org/showthread.php?t=1485613 for more details about my issue.

Revision history for this message
Colin Harrington (colin-harrington) wrote :

This issue is similar to mine but I'm not 100% sure that this is the same issue. Should I file my own bug? Sorry for my naivete.

Revision history for this message
WeatherGod (ben-v-root) wrote :

laelfrog, could you provide a little bit more information about what sort of wireless setup you have? What is your wireless card and what is the router? What sort of encryption are you using? Things of that nature.

Changed in network-manager (Ubuntu):
status: New → Confirmed
Revision history for this message
Colin Harrington (colin-harrington) wrote :

I have a linksys WRT350N using DDWRT.
http://www.linksysbycisco.com/CA/en/support/WRT350N
Basic Settings:
Wireless Mode: AP
Wireless Network Mode: I have it configured in a "Mixed" mode (so it can run b/g/n at the same time as opposed to "B-Only", "G-Only", "N-Only" or "BG-Mixed")
Wireless Network Name (SSID): MySSID...
Wireless Channel : 4
Wireless SSID Broadcast: Enable

Wireless Security:
Security Mode: "WPA2 Personal Mixed"
WPA Algorithms: "TKIP"
WPA Shared Key: ****************************************************************...
Key Renewal Interval (in seconds): 3600
Sensitivity Range (ACK Timing): 2000
Network Configuration: Bridged

The Wireless Card is what came in my 2010 Unibody Macbook Pro (6,1)
It ends up being a Broadcom network controller with a deviceID of 4353
03:00.0 Network controller [0280]: Broadcom Corporation Device [14e4:4353] (rev 01)

I've been using wicd for a day now without issue, which leads me to believe that the issue may lie with NetworkManager.

What else would be helpful to attach here?

Revision history for this message
Thomas Hood (jdthood) wrote :

To everyone who had this problem: please confirm or disconfirm that the problem still exists under Ubuntu 12.04. If it exists, please run "apport-collect 484366" to send more information.

summary: - network connection randomly drops then restarts
+ NM randomly dis- and reconnects Wi-Fi; wicd doesn't
Changed in network-manager (Ubuntu):
status: Confirmed → Incomplete
Revision history for this message
Mike (bild85) wrote :

I have not seen this since 2010.

Revision history for this message
Thomas Hood (jdthood) wrote :

Thanks for the update.

Changed in network-manager (Ubuntu):
status: Incomplete → Fix Released
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