RELENG_7 and atheros ....
oberman at es.net
Fri Nov 16 12:09:07 PST 2007
> Date: Fri, 16 Nov 2007 13:57:44 -0600
> From: Eric Schuele <e.schuele at computer.org>
> >>>> 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.
> > 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.
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman at es.net Phone: +1 510 486-8634
Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751
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