Comment 67 for bug 352228

I experience similar network dropouts, approximately since upgrading to Karmic last November. Dmesg reports are similar to post #59 and others.

I can be reproduced this effectively by use of higher load sent-receive communications, such as Skype. The connections drop within 30 minutes of Skype audio conversation (with a video feed added the chances also increase). I say sent-receive communications, because watching a streamed (HD) movie with much more received data does not produce the issue necessarily. In my 'normal' use of browsing and sending emails the issue occurs once in 1-5 hours.

A 'sudo rmmod iwlagn;sudo modprobe iwlagn' does not restore wifi network, as reported here http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2037. A reboot is required.

There are still some things missing in wicd, so that would not work well for me as a solution.

System: Lenovo Thinkpad X200, Intel 5300agn.

uname -a: Linux xxxxxx 2.6.31-17-generic #54-Ubuntu SMP Thu Dec 10 16:20:31 UTC 2009 i686 GNU/Linux

dmesg | grep WiFi :
[11235.574561] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, 1.3.27k
[11235.574762] iwlagn 0000:03:00.0: Detected Intel Wireless WiFi Link 5300AGN REV=0x24

Snippet of dmesg:
[ 267.009198] iwlagn 0000:03:00.0: No space for Tx
[ 267.009210] iwlagn 0000:03:00.0: Error sending REPLY_RXON: enqueue_hcmd failed: -28
[ 267.009217] iwlagn 0000:03:00.0: Error setting new RXON (-28)
[ 267.009271] iwlagn 0000:03:00.0: No space for Tx
[ 267.009280] iwlagn 0000:03:00.0: Error sending REPLY_SCAN_CMD: enqueue_hcmd failed: -28
[ 267.009313] iwlagn 0000:03:00.0: No space for Tx
[ 267.009318] iwlagn 0000:03:00.0: Error sending REPLY_RXON: enqueue_hcmd failed: -28
[ 267.009325] iwlagn 0000:03:00.0: Error setting new RXON (-28)
[ 267.009331] iwlagn 0000:03:00.0: No space for Tx
[ 267.009336] iwlagn 0000:03:00.0: Error sending REPLY_RXON: enqueue_hcmd failed: -28
[ 267.009342] iwlagn 0000:03:00.0: Error setting new RXON (-28)
[ 267.009353] iwlagn 0000:03:00.0: No space for Tx
[ 267.009359] iwlagn 0000:03:00.0: Error sending REPLY_TX_POWER_DBM_CMD: enqueue_hcmd failed: -28

Thank you for helping find a solution.