Re: problems with intel wireless cards

[Bjorge Solli <bjorge solli it uib no>]

Aaron Konstam wrote:
> On Mon, 2008-11-10 at 11:33 +0100, Bjorge Solli wrote:
>> Hi Dan and others,
>>
>> we see a problem with intel wireless cards on our Fedora 9 with 2.6.26
>> kernel.
>>
>> The problem exists (it seems) only on our high end wireless routers, not
>> on cheap home access points. I have seen it on both a and g networks, on
>> two different brands of routers (both cisco).
>>
>> 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.
>>
>> We are able to "solve" this in these ways:
>> - restart NetworkManager service many times until it works.
>> - revert to 2.6.25 kernel
>>
>> We have seen the same on Ubuntu.
>>
>> We first thought it was due to bad firmware, but we have produced the
>> same results with all fw we could get our hands on.
>>
>> 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.
>>
>> Regards
>> Bjørge Solli
>> Univ. of Bergen, Norway
> I am a little confused. I have an ipw2200 card, which I think is an
> intel card. I am using the 2.6.26.6-79 kernel and networking works
> What card is giving you problems?

Ah. That was of course a bad assumption by me, it is a
Intel Corporation Mobile GM965/GL960 Integrated Graghics Controller (rev 0c)

I do *not* see the same problem on
Intel Corporation Cantiga Integrated Graphics Controller (rev 07)
when I checked now, sow it's clearly related to only the above chipset.

I run the iwl4965,iwlcore,mac80211,cfg80211 kernel modules.

Thanks for the update.
Bjørge