Re: problems with intel wireless cards

[Dan Williams <dcbw redhat com>]

On Tue, 2008-11-11 at 09:12 +0100, Bjorge Solli wrote: 
> Bjorge Solli wrote:
> > Dan Williams skrev:
> >> On Mon, 2008-11-10 at 11:33 +0100, Bjorge Solli wrote:
> 
> >>> The router receives the first request for connection, but it gives up
> >>> replying after 10 tries. This results in no connection when the wireless
> >>> card times out.
> 
> >>> It seems to me that this is not a bug in NM, but in the kernel, and that
> >>> NM sometimes does "The Right Thing" to make it work, and other times
> >>> not. I'm guessing it's a kernel issue, but want your advice on this topic.
> >> There's an Fedora kernel bug open for this one; if you can, try turning
> >> off 802.11n if the AP has 802.11n enabled.  If that fixes the problem,
> >> then it's the same thing that worked for some other people in the bug,
> >> and clearly indicates a kernel driver/stack bug that needs to be fixed.
> > 
> > I will try this tomorrow (I'm on CET). Will this bug have this effect
> > even when the AP don't have n-network available? I'm not sure how to
> > turn n of though, is it a sw or bios setting? It's a HP 2510p.
> 
> I tried:
> [root it011015 ~]# iwconfig wlan0 modu 11g
> Error for wireless request "Set Modulation" (8B2F) :
>     SET failed on device wlan0 ; Operation not supported.
> [root it011015 ~]# iwconfig wlan0 modu 11b
> Error for wireless request "Set Modulation" (8B2F) :
>     SET failed on device wlan0 ; Operation not supported.
> [root it011015 ~]# iwconfig wlan0 modu 11a
> Error for wireless request "Set Modulation" (8B2F) :
>     SET failed on device wlan0 ; Operation not supported.
> 
> Anything else I can try?

I mean turn off 802.11n on the *AP* if you can.

https://bugzilla.redhat.com/show_bug.cgi?id=458972 (near the bottom)

Dan