Date: Thu, 18 Sep 2008 20:18:54 +0200 From: Johann Hugo <jhugo@meraka.csir.co.za> To: freebsd-mobile@freebsd.org Subject: Re: Wpi keep disconnecting Message-ID: <200809182018.55084.jhugo@meraka.csir.co.za> In-Reply-To: <20080918173634.CE1844500E@ptavv.es.net> References: <20080918173634.CE1844500E@ptavv.es.net>
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On Thursday 18 September 2008, Kevin Oberman wrote: > > From: David Booth <davidb@boothscientific.com> > > Date: Thu, 18 Sep 2008 07:13:42 -0500 > > Sender: owner-freebsd-mobile@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.
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