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?

-- 
Steven Haigh

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