On 03/12/2013 04:03 PM, Steven Haigh wrote:
> On 13/03/13 02:58, Steven Haigh wrote:
>> On 03/13/2013 02:54 AM, Pat Riehecky wrote:
>>> On 03/12/2013 05:45 AM, Steven Haigh wrote:
>>>> On 12/03/13 21:03, Steven Haigh wrote:
>>>>> Hi all,
>>>>>
>>>>> I've been trying to figure out the cause of this... It seems I'll be
>>>>> using the wifi without issue, then NetworkManager will indicate that it
>>>>> is reconnecting. It seems to happen randomly with no real pattern.
>>>>>
>>>>> iw events -t shows:
>>>>> 4b:d6:98:14:48 -> 00:0f:66:c5:2d:6b reason 3: Deauthenticated because
>>>>> sending station is leaving (or has left) the IBSS or ESS
>>>>> 1363082116.240481: wlan0 (phy #0): disconnected (local request)
>>>>> ....
>>>>> 1363082122.323703: wlan0 (phy #0): auth 00:0f:66:c5:2d:6b ->
>>>>> 1c:4b:d6:98:14:48 status: 0: Successful
>>>>> 1363082122.344295: wlan0 (phy #0): assoc 00:0f:66:c5:2d:6b ->
>>>>> 1c:4b:d6:98:14:48 status: 0: Successful
>>>>> 1363082122.347571: wlan0 (phy #0): connected to 00:0f:66:c5:2d:6b
>>>>>
>>>>> Interestingly, I've only had this problem under linux. The access point
>>>>> is stable and works fine with the same card under Windows 7 - as
>>>>> well as
>>>>> our smart phones etc etc. The access point hasn't changed in a
>>>>> number of
>>>>> years (4+).
>>>>>
>>>>> At the moment, I'm using the kernel-ml from elrepo until I can get the
>>>>> eeepc module re-enabled for 64 bit kernels from our wondering upstream
>>>>> provider. (Battery life dies to about 3.5 hours instead of 5+ with it!)
>>>>>
>>>>> I've tried 'iwconfig wlan0 power off' to disable power management from
>>>>> the wifi adapter, but the dropouts still seem to randomly happen.
>>>>> The AP
>>>>> is secured with WPA2-PSK (AES+TKIP) - not sure if that makes a
>>>>> difference...
>>>>>
>>>>> Does anyone have any thoughts in troubleshooting this?
>>>>>
>>>>
>>>> I should note as well that I added the following to a new file called
>>>> /etc/modprobe.d/wireless.conf:
>>>> options ath9k nohwcrypt=1
>>>>
>>>> This doesn't seem to have made a difference.
>>>>
>>>
>>> I've got one of these at home and I see similar behavior - it drops out
>>> rather often.  I've not found a fix...
>>
>> Dang! Its rather annoying to say the least. I've even tried kernel 3.8.2
>> (which has the eeepc_laptop module included in the 64 bit kernel.
>>
>> Might have to do some more research....
>>
>
> This is interesting. I'm sitting at work using the exact same brand / model 
> access point as I have at home - yet it hasn't dropped out once. I'm 
> wondering if I should factory reset the one at home and see if it makes a 
> difference.
>
> Pat: What type of router / AP do you have?
>

I've got a WRT54GL (tomato-wrt)

Pat


-- 
Pat Riehecky

Scientific Linux developer
http://www.scientificlinux.org/