WPA2 Issues in Ubuntu Karmic 9.10

[Dan Williams]

On Fri, 2009-11-20 at 14:37 -0500, Bryan Moore wrote:
> I think that's where my problem is a little different, since I use
> neither network-manager nor wicd.

Then that points to either an AP issue or a driver issue.  I'd first
suspect the driver, but consumer-level APs are often pieces of junk that
sometimes randomly fail as well.

First try to reboot the AP.  If that doesn't help, then try to downgrade
your kernel if you still have an older one installed.  That can help
isolate driver issues.

After that, well, you have to jump into debugging the kernel wireless
stack, which isn't really that bad.

Dan

> On Fri, Nov 20, 2009 at 2:36 PM, Dan Williams <dcbw at redhat.com> wrote:
>         On Fri, 2009-11-20 at 05:25 -0500, Bryan Moore wrote:
>         > Thanks... I figured that was going to be the answer, but was
>         hoping
>         > someone would just write-back "oh, it's this..."
>         > :-(
>         
>         
>         It's almost never that simple :)
>         
>         > Here's one I started in UbuntuForums, here's my Launchpad
>         bug, here's
>         > one of the others, and I've attached some of command outputs
>         specific
>         > to my system.
>         
>         
>         The Syslog.txt in that first Launchpad bug shows a lot of:
>         
>         Jul 18 17:17:28 molly kernel: [25847.724098] wlan0: no probe
>         response from AP 00:13:d3:81:ac:d6 - disassociating
>         
>         It looks from that bug report that NM is working correctly,
>         but often
>         the driver simply disconnects you because the AP is not
>         responding to
>         probe requests, or the driver has a bug which causes it to
>         miss the
>         probe responses.
>         
>         Dan
>         
>         
>         > Thanks, again.
>         >
>         >
>         > On Thu, Nov 19, 2009 at 6:12 PM, Jouni Malinen <j at w1.fi>
>         wrote:
>         >
>         >         On Thu, Nov 19, 2009 at 02:52:13PM -0500, Bryan
>         Moore wrote:
>         >         > There are *many* questions regarding some basic
>         networking
>         >         problems in
>         >         > Ubuntu Karmic Koala 9.10 and the forum
>         >         (http://www.ubuntuforum.org/)
>         >         > provided me little direction in this single case,
>         so I
>         >         thought I'd go to the
>         >         > source.
>         >         >
>         >         > It would *seem* there is a problem with
>         wpa_supplicant in
>         >         Ubuntu right now;
>         >         > some, me being one, are having *serious
>         *networking issues
>         >         when using WPA2.
>         >         > There are some threads discussing it and a bug has
>         been
>         >         filed in Launchpad,
>         >         > but most focus on a Network-Manager issue rather
>         than
>         >         wpa_supplicant. Some
>         >         > have also reported the issue either greatly
>         diminishes or
>         >         disappears
>         >         > completely when switching from WPA2 to WPA.
>         >         >
>         >         > Could you advise me where to begin my little
>         investigation?
>         >
>         >
>         >         You could start by providing some more details of
>         the issue or
>         >         a pointer
>         >         to such description (like a full URL to a thread
>         discussing
>         >         this or a
>         >         specific bug in Launchpad). As far as this mailing
>         list is
>         >         concerned,
>         >         getting a verbose debug log from wpa_supplicant
>         (both success
>         >         and
>         >         failure case) and description of which driver you
>         are using
>         >         would also
>         >         be quite helpful.
>         >
>         >         --
>         >         Jouni Malinen
>              PGP
>         >         id EFC895FA
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