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 will give it a try, but my memory is that bgscan is not supported in 
the wpi driver yet anyway, but I may be wrong.  As far as 
reconnecting automatically, it never did that anyway, so I have 
nothing to loose.