RELENG_7 and atheros ....

Eric Schuele e.schuele at
Tue Nov 27 07:19:37 PST 2007

On 11/16/2007 14:09, Kevin Oberman wrote:
>> Date: Fri, 16 Nov 2007 13:57:44 -0600
>> From: Eric Schuele <e.schuele at>
>>>>>>   2) I get disconnected every night from my wireless router at home.> 
>>>>>> 99% of the time it happens after I've gone to bed.  Once or twice...> 
>>>>>> while I was sitting in front of it.  It just disassociates?
>>>>> Try 'ifconfig ath0 -bgscan'. Something causes my card to lose
>>>>> association periodically when the background scan is in progress.
>>>> Are you saying try the above *after* I've been disconnected?  Or is it> 
>>>> an attempt to reproduce the disconnect?
>>> No. Try it as soon as your system comes up. 
>> Oh, I see.  Would it be sufficient to place it in my rc.conf:
>>    ifconfig_ath0="WPA DHCP -bgscan"
> Yes. This should do the same thing. I didn't do it so I would notice if
> the behavior changed.

Just as a follow up....
After making the above change, I have not noticed this problem
occurring.  So it appears as though this has fixed it.

Thanks.  :)

>>> It disables the regular
>>> background scan for APs that, by default, happens every 5 minutes. Note> 
>>> that I don't see my association go down on every scan, but turning this> 
>>> off seems to prevent the disassociation from ever happening. I have
>>> confirmation from at leat two others with the same Atheros chip-set tha> t
>>> this fixed their recurrent disconnects. (It certainly fixed mine.)
>>> Note that this change will have a negative effect if you are roaming or> 
>>> your environment changes in some way.
>> I do no roaming.
> So turning off background scanning should have no effect on you.


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