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Old 08-19-2011, 07:50 PM
Stefan Rutzinger
 
Default Lost wifi connection

Hello,

yet another problem. Randomly, my wifi card drops its connection. It seems
to forget its setting but everything which can be found in the logs is
shown below. It needs ifdown wlan0; ifup wlan0 to recover.


This seems to be related to the link quality because this occurs more
often when the signal is poor. However it's annoying having to restart the
network whenever the signal strength dropped just for a second.


# cat /var/log/messages
kernel: [ 363.852630] cfg80211: Calling CRDA to update world regulatory
domain
kernel: [ 374.473765] ADDRCONF(NETDEV_UP): wlan0:
link is not ready
kernel: [ 375.484569] ADDRCONF(NETDEV_CHANGE):
wlan0: link becomes ready

# cat /proc/version
Linux version 3.0.0-1-amd64 (Debian 3.0.0-1) (ben@decadent.org.uk) (gcc
version 4.5.3 (Debian 4.5.3-4) ) #1 SMP Sun Jul 24 02:24:44 UTC 2011


# lspci | grep Wi
02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless
Network Adapter (PCI-Express) (rev 01)


Does anybody know about such a behaviour?
Stefan


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Old 08-20-2011, 11:54 AM
Brian
 
Default Lost wifi connection

On Fri 19 Aug 2011 at 21:50:11 +0200, Stefan Rutzinger wrote:

[Snip]

> # cat /var/log/messages
> kernel: [ 363.852630] cfg80211: Calling CRDA to update world regulatory
> domain
> kernel: [ 374.473765] ADDRCONF(NETDEV_UP): wlan0:
> link is not ready
> kernel: [ 375.484569] ADDRCONF(NETDEV_CHANGE):
> wlan0: link becomes ready

More detail is necessary to see what is going on. /var/log/syslog the
next time the connection is dropped should provide it.

[Snip]

> Does anybody know about such a behaviour?

It happens. Knowing what you have used to set up wifi might be helpful.


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