Comment 5 for bug 420678

I have a EliteBook 8530w, with Intel WiFi 5300 too, and bought a new D-Link DIR-855 with 5GHz WLAN and 802.11n. I've got the exact same message.

uname -a
Linux alpha 2.6.31-12-generic #41-Ubuntu SMP Wed Oct 7 19:37:12 UTC 2009 x86_64 GNU/Linux

iwconfig wlan0 says something interessting:
wlan0 IEEE 802.11abgn ESSID:"my_wlan_5ghz"
          Mode:Managed Frequency:5.22 GHz Access Point: 00:24:01:34:41:1C
          Bit Rate=0 kb/s Tx-Power=15 dBm
          Retry long limit:7 RTS thr:off Fragment thr:off
          Power Management:off
          Link Quality=69/70 Signal level=-41 dBm Noise level=-91 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
          Tx excessive retries:0 Invalid misc:0 Missed beacon:0

Bit Rate=0 kb/s?

rmmod iwlagn & modprobe iwlagn helps for me. Sometimes i need to do it several times, then suddenly ping works, and sometimes for longer times, sometimes only for a few seconds...

bye
falstaff