Comment 22 for bug 365321

I experience the same problem with my Ubuntu install.
My system specs:
HP dv5t laptop with Intel 5100 network card
Ubuntu Karmic

Rebooting or reloading the network modules does the trick for me but it still is very irritating...
Curiously, hard stop and start of wireless radio receiver (via the touch button on top of the keyboard) does not work. When I swipe that button, instead of the light turning red (which should be the case), it starts to blink! Looking into that, which I will later, should help pinpoint the nature of the problem.

P.S. : I just reloaded my network modules in order to submit this :D

Here's the relevant snapshot from my ken.log file:

Feb 19 19:11:59 ssahasr-laptop kernel: [26523.928260] wlan0: no probe response from AP 00:24:56:69:45:d1 - disassociating
Feb 19 19:11:59 ssahasr-laptop kernel: [26524.532255] iwlagn 0000:02:00.0: Error sending REPLY_RXON: time out after 500ms.
Feb 19 19:11:59 ssahasr-laptop kernel: [26524.532267] iwlagn 0000:02:00.0: Error setting new RXON (-110)
Feb 19 19:12:00 ssahasr-laptop kernel: [26525.028571] iwlagn 0000:02:00.0: Error sending REPLY_SCAN_CMD: time out after 500ms.
Feb 19 19:12:00 ssahasr-laptop kernel: [26525.528605] iwlagn 0000:02:00.0: Error sending REPLY_RXON: time out after 500ms.
Feb 19 19:12:00 ssahasr-laptop kernel: [26525.528616] iwlagn 0000:02:00.0: Error setting new RXON (-110)
Feb 19 19:12:01 ssahasr-laptop kernel: [26526.028688] iwlagn 0000:02:00.0: Error sending REPLY_RXON: time out after 500ms.
Feb 19 19:12:01 ssahasr-laptop kernel: [26526.028699] iwlagn 0000:02:00.0: Error setting new RXON (-110)
Feb 19 19:12:05 ssahasr-laptop kernel: [26530.532099] iwlagn 0000:02:00.0: Error sending REPLY_RXON: time out after 500ms.
Feb 19 19:12:05 ssahasr-laptop kernel: [26530.532111] iwlagn 0000:02:00.0: Error setting new RXON (-110)
Feb 19 19:12:06 ssahasr-laptop kernel: [26531.028570] iwlagn 0000:02:00.0: Error sending REPLY_SCAN_CMD: time out after 500ms.
Feb 19 19:12:06 ssahasr-laptop kernel: [26531.528569] iwlagn 0000:02:00.0: Error sending REPLY_RXON: time out after 500ms.
Feb 19 19:12:06 ssahasr-laptop kernel: [26531.528580] iwlagn 0000:02:00.0: Error setting new RXON (-110)
Feb 19 19:12:07 ssahasr-laptop kernel: [26532.028649] iwlagn 0000:02:00.0: Error sending REPLY_RXON: time out after 500ms.
Feb 19 19:12:07 ssahasr-laptop kernel: [26532.028661] iwlagn 0000:02:00.0: Error setting new RXON (-110)
Feb 19 19:12:11 ssahasr-laptop kernel: [26536.532744] iwlagn 0000:02:00.0: Error sending REPLY_RXON: time out after 500ms.
Feb 19 19:12:11 ssahasr-laptop kernel: [26536.532755] iwlagn 0000:02:00.0: Error setting new RXON (-110)
Feb 19 19:12:12 ssahasr-laptop kernel: [26537.032841] iwlagn 0000:02:00.0: Error sending REPLY_SCAN_CMD: time out after 500ms.
Feb 19 19:12:12 ssahasr-laptop kernel: [26537.532607] iwlagn 0000:02:00.0: Error sending REPLY_RXON: time out after 500ms.
Feb 19 19:12:12 ssahasr-laptop kernel: [26537.532618] iwlagn 0000:02:00.0: Error setting new RXON (-110)
Feb 19 19:12:13 ssahasr-laptop kernel: [26538.032536] iwlagn 0000:02:00.0: Error sending REPLY_RXON: time out after 500ms.
Feb 19 19:12:13 ssahasr-laptop kernel: [26538.032547] iwlagn 0000:02:00.0: Error setting new RXON (-110)
Feb 19 19:12:17 ssahasr-laptop kernel: [26542.536804] iwlagn 0000:02:00.0: Error sending REPLY_RXON: time out after 500ms.
Feb 19 19:12:17 ssahasr-laptop kernel: [26542.536816] iwlagn 0000:02:00.0: Error setting new RXON (-110)
Feb 19 19:12:18 ssahasr-laptop kernel: [26543.036560] iwlagn 0000:02:00.0: Error sending REPLY_SCAN_CMD: time out after 500ms.
Feb 19 19:12:18 ssahasr-laptop kernel: [26543.538181] iwlagn 0000:02:00.0: Error sending REPLY_RXON: time out after 500ms.
Feb 19 19:12:18 ssahasr-laptop kernel: [26543.538192] iwlagn 0000:02:00.0: Error setting new RXON (-110)
Feb 19 19:12:19 ssahasr-laptop kernel: [26544.036576] iwlagn 0000:02:00.0: Error sending REPLY_RXON: time out after 500ms.
Feb 19 19:12:19 ssahasr-laptop kernel: [26544.036587] iwlagn 0000:02:00.0: Error setting new RXON (-110)
Feb 19 19:12:23 ssahasr-laptop kernel: [26548.548609] iwlagn 0000:02:00.0: Error sending REPLY_RXON: time out after 500ms.
Feb 19 19:12:23 ssahasr-laptop kernel: [26548.548620] iwlagn 0000:02:00.0: Error setting new RXON (-110)
Feb 19 19:12:24 ssahasr-laptop kernel: [26549.048655] iwlagn 0000:02:00.0: Error sending REPLY_SCAN_CMD: time out after 500ms.
Feb 19 19:12:24 ssahasr-laptop kernel: [26549.548555] iwlagn 0000:02:00.0: Error sending REPLY_RXON: time out after 500ms.
Feb 19 19:12:24 ssahasr-laptop kernel: [26549.548567] iwlagn 0000:02:00.0: Error setting new RXON (-110)
Feb 19 19:12:25 ssahasr-laptop kernel: [26550.051631] iwlagn 0000:02:00.0: Error sending REPLY_RXON: time out after 500ms.
Feb 19 19:12:25 ssahasr-laptop kernel: [26550.051642] iwlagn 0000:02:00.0: Error setting new RXON (-110)
Feb 19 19:12:25 ssahasr-laptop kernel: [26550.051661] iwlagn 0000:02:00.0: No space for Tx
Feb 19 19:12:25 ssahasr-laptop kernel: [26550.051667] iwlagn 0000:02:00.0: Error sending REPLY_TX_POWER_DBM_CMD: enqueue_hcmd failed: -28
Feb 19 19:12:29 ssahasr-laptop kernel: [26554.054319] iwlagn 0000:02:00.0: No space for Tx
Feb 19 19:12:29 ssahasr-laptop kernel: [26554.054331] iwlagn 0000:02:00.0: Error sending REPLY_RXON: enqueue_hcmd failed: -28
Feb 19 19:12:29 ssahasr-laptop kernel: [26554.054338] iwlagn 0000:02:00.0: Error setting new RXON (-28)