Date: Thu, 18 Sep 2008 10:36:34 -0700 From: "Kevin Oberman" <oberman@es.net> To: davidb@boothscientific.com Cc: freebsd-mobile@freebsd.org Subject: Re: Wpi keep disconnecting Message-ID: <20080918173634.CE1844500E@ptavv.es.net> In-Reply-To: Your message of "Thu, 18 Sep 2008 07:13:42 CDT." <200809180713.42287.davidb@boothscientific.com>
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--==_Exmh_1221759394_89905P Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > 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. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634 Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751 --==_Exmh_1221759394_89905P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) Comment: Exmh version 2.5 06/03/2002 iD8DBQFI0pGikn3rs5h7N1ERAsAWAJ0deehJrhIsHjypHPaR6vZHab9XKwCgr0KR 8vVp92jCNJLr+9Cam6JBdFw= =bg0f -----END PGP SIGNATURE----- --==_Exmh_1221759394_89905P--
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