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Date:      Tue, 27 Nov 2007 09:19:36 -0600
From:      Eric Schuele <e.schuele@computer.org>
To:        Kevin Oberman <oberman@es.net>
Cc:        freebsd-current@freebsd.org
Subject:   Re: RELENG_7 and atheros ....
Message-ID:  <474C3588.4030900@computer.org>
In-Reply-To: <20071116200903.A1EE84500F@ptavv.es.net>
References:  <20071116200903.A1EE84500F@ptavv.es.net>

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On 11/16/2007 14:09, Kevin Oberman wrote:
>> Date: Fri, 16 Nov 2007 13:57:44 -0600
>> From: Eric Schuele <e.schuele@computer.org>
>>
>>>>>>   2) I get disconnected every night from my wireless router at hom=
e.>=20
>>>>>> 99% of the time it happens after I've gone to bed.  Once or twice.=
=2E.>=20
>>>>>> 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>=20
>>>> an attempt to reproduce the disconnect?
>>> No. Try it as soon as your system comes up.=20
>> Oh, I see.  Would it be sufficient to place it in my rc.conf:
>>    ifconfig_ath0=3D"WPA DHCP -bgscan"
>=20
> 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.  :)

>=20
>>> It disables the regular
>>> background scan for APs that, by default, happens every 5 minutes. No=
te>=20
>>> that I don't see my association go down on every scan, but turning th=
is>=20
>>> off seems to prevent the disassociation from ever happening. I have
>>> confirmation from at leat two others with the same Atheros chip-set t=
ha> t
>>> this fixed their recurrent disconnects. (It certainly fixed mine.)
>>>
>>> Note that this change will have a negative effect if you are roaming =
or>=20
>>> your environment changes in some way.
>> I do no roaming.
>=20
> So turning off background scanning should have no effect on you.


--=20
Regards,
Eric



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