Date: Fri, 08 Aug 2008 09:14:32 -0700 From: Sam Leffler <sam@freebsd.org> To: Alberto Rizzi <greenant@fastmail.fm> Cc: freebsd-mobile@freebsd.org Subject: Re: Wpi keep disconnecting Message-ID: <489C70E8.2080800@freebsd.org> In-Reply-To: <489C625F.3020605@fastmail.fm> References: <489C625F.3020605@fastmail.fm>
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Alberto Rizzi wrote:
> I have a Thinkpad T61 (UZ25FIT) dual boot with Xp and FreeBSD and has
> an Intel 3945ABG on board.
>
> #uname -a
> FreeBSD yoda.endor 7.0-STABLE FreeBSD 7.0-STABLE #0: Fri Aug 8
> 13:51:42 CEST 2008 root@yoda.endor:/usr/obj/usr/src/sys/YODA i386
>
> I can load the wpi driver and configure the interface, then I can
> connect to my wifi router (linksys wag54g 1v) with WPA and surf
> internet but after a while the wpi disconnects. I think it is volume
> related and not time related, maybe a counter overflow or something
> other.
>
> If I mount a NFS directory and start copying files from the server to
> the notebook, after a minute the wpi disconnects.
> In /var/log/messages I can read
> wpi0: link state changed to DOWN
>
> and in wpa_cli I can read
> <3>Michael MIC failure detected
> <3>Michael MIC failure detected
> <3>TKIP countermeasures started
> <2>CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys
>
> after a minute I read in /var/log/messages
> wpi0: scan timeout
>
> and in wpa_cli
> <2>WPA: TKIP countermeasures stopped
>
> with netstat -ibh I see I moved 12MBytes
>
> If I write "reassociate" in wpa_cli, after some seconds in var log
> messages I read
> wpi0: link state changed to UP
>
> and in wpa_cli
> <2>Trying to associate .....
> <2>Associated with .....
> <2>WPA: Key negotiation completed .....
> <2>CTRL-EVENT-CONNECTED .....
>
> If I restart the copying process I can see
> <3>Michael MIC failure detected
> but wpi doesn't disconnect.
>
> After a while wpi disconnects and I have the same messages in
> /var/log/messages and wpa_cli
>
> There isn't a fixed amount of bytes I can transfer between two
> disconnection, sometime 10MB, sometime 100MB, but the maximum was 140MB
>
> Please help me, I can give further info.
> I have FreeBSD 7 on this PC since its release and I always had problems
Check for a firmware update for your router.
Sam
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