wicd wireless disconnection issue

[John]

Hello,

Randomly sometimes I lose my wireless connection and after that it is impossible for me to get the connection back.
wicd does not see any network anymore, restarting it does not help.

iwlist scan returns nothing etc...

but as soon as I restart the computer we are all good again.
From a comment on the Arch Linux forum I realized that rmmod ath9k + modprobe ath9k "solves" the issue too without restarting.

I have a wifi card with an atheros chip:
05:04.0 Network controller: Atheros Communications Inc. AR5008 Wireless Network Adapter (rev 01)

I am using the module in the kernel that gets loaded automatically:
ath9k 77563 0
ath9k_common 4902 1 ath9k
ath9k_hw 286570 2 ath9k,ath9k_common
ath 8822 2 ath9k,ath9k_hw
mac80211 189270 2 ath9k,ath9k_common
cfg80211 144231 4 ath9k,ath9k_common,ath,mac80211
led_class 2363 1 ath9k

and I really don't know what to do.
This is the output of iwconfig once I am disconnected:
wlan0 IEEE 802.11bgn Mode:Managed Frequency:2.437 GHz
          Access Point: Not-Associated Tx-Power=20 dBm
          Retry long limit:7 RTS thr:off Fragment thr:off
          Encryption key:off
          Power Management:off
and ifconfig
wlan0 Link encap:Ethernet HWaddr D8:5D:4C:A3:AA:01
          UP BROADCAST MULTICAST MTU:1500 Metric:1
          RX packets:6167973 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4296522 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:9158722636 (8734.4 Mb) TX bytes:394596254 (376.3 Mb)

ifconfig up / down does not help...

What I found in the daemon.log is this:

Sep 1 10:20:36 localhost dhcpcd[2406]: wlan0: renewing lease of 192.168.1.117
Sep 1 10:20:36 localhost dhcpcd[2406]: wlan0: acknowledged 192.168.1.117 from 192.168.1.1
Sep 1 10:20:36 localhost dhcpcd[2406]: wlan0: leased 192.168.1.117 for 86400 seconds
Sep 1 10:51:08 localhost dhcpcd[2406]: wlan0: carrier lost
Sep 1 10:51:08 localhost dhcpcd[2406]: received SIGHUP, releasing
Sep 1 10:51:08 localhost dhcpcd[2406]: wlan0: removing interface
Sep 1 10:51:08 localhost dhcpcd[8726]: sending signal 1 to pid 2406
Sep 1 10:51:08 localhost dhcpcd[8726]: waiting for pid 2406 to exit
Sep 1 10:51:08 localhost dhcpcd[8740]: dhcpcd not running

but I am not sure what to make out of this....

uname:
Linux 2.6.35-ARCH #1 SMP PREEMPT Fri Aug 27 17:14:28 CEST 2010 x86_64 Intel(R) Core(TM) i5 CPU 750 @ 2.67GHz GenuineIntel GNU/Linux

I have never seen anything in dmesg that looks suspicious.
"rfkill list all" returns nothing interesting either.

Now one thing that did work was to switch from wicd to networkmanager. Since then I did not get that issue once in about a week (I used to get it at least every other day, if not a couple times the same day...) so it seems linked to wicd somehow.

I'm not sure what else to report...

Thanks!

[John (john-gee)]

Oops I forgot to give the wicd version:
Version : 1.7.0-4

[German de la Cruz (gerdlc)]

See this, perhaps it's related

https://answers.launchpad.net/ubuntu/+source/gnome-nettool/+question/220186