Wpi keep disconnecting

[David Booth]

On Thursday 18 September 2008, Johann Hugo wrote:
> On Thursday 18 September 2008, Kevin Oberman wrote:
> > > From: David Booth <davidb at boothscientific.com>
> > > Date: Thu, 18 Sep 2008 07:13:42 -0500
> > > Sender: owner-freebsd-mobile at freebsd.org
> > >
> > > On Thursday 18 September 2008, Mark Kirkwood wrote:
> > > > Alberto Rizzi wrote:
> > > > > Sam Leffler ha scritto:
> > > > >> Check for a firmware update for your router.
> > > > >>
> > > > >>    Sam
> > > > >
> > > > > It already has the latest firmware (maybe 4 years old).
> > > > > Unfortunately I don't have other routers to try with.
> > > >
> > > > I would seriously doubt this is a router problem - I see the
> > > > same thing with an Asus laptop using wpi driver + WPA
> > > > encryption. In my case disabling the encryption was a
> > > > workaround (a very poor one I know). This appears to be a
> > > > Freebsd issue AFAIK, as for instance under Ubuntu I can have
> > > > WPA enabled with such disconnection occurring.
> > > >
> > > > regards
> > > >
> > > > Mark
> > >
> > > I have a similar experience with wpi in a dell laptop running 7
> > > stable i386.  Without encryption, the connection will stay up
> > > without fail. If I enable WPA, it disconnects at seeming random
> > > intervals that are shortened by doing large file transfers. 
> > > Sometimes it will go for a full day without disconnecting;
> > > however,  if I do a file ftp of a few hundred megs, it may
> > > disconnect after a just a few minutes.  I do not think that it
> > > is a hardware problem in either the card or the router as when
> > > I boot the laptop into windows and use the same router and same
> > > WPA settings, the connection remains rock solid even with
> > > successive large file transfers.
> >
> > This is a bit of a shot in the dark, but I happen to be on a WPA
> > connection today and I hit this one or something very similar.
> > Since I am on an Atheros, it may be different, but I made the
> > problem "go awa" with 'ifconfig ath0 -bgscan'. bgscan should not
> > interfere in any way with normal operation, but I have seen
> > issues from it for some time and al most always turn off bgscan
> > as the first attempt to "fix" mystery disconnects.
>
> I've got a Dell 1720 with a wpi wireless adapter in it. It was also
> droping the connection very often, until I added -bgscan to my
> ifconfig line. Now it stays connected all the time. except if my AP
> reboots then it does not want to reconnect automatically.

I gave it a try and that did not do the trick.  It died less than two 
minutes into an ftp session with less than 300 MB transferred. After 
restarting, it died in less than a minute.   The only logged error 
messages for the interface are the usual messages about Timeout 
resetting TX ring 3 or 4.
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