Wpi keep disconnecting

[Sam Leffler]

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 at 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