Re: I always need a miracle to connect with iwlwifi

[Oleksij Rempel <linux@rempel-privat.de>]

Am 28.10.2013 10:38, schrieb Felipe Contreras:
> On Mon, Oct 28, 2013 at 2:31 AM, Oleksij Rempel <linux@rempel-privat.de> wrote:
>> Am 28.10.2013 07:24, schrieb Felipe Contreras:
>>> Hi,
>>>
>>> I already reported this problem [1] and I got no feedback whatsoever
>>> at all. The issue keeps happening and I've tried many things.
>>>
>>> First of all, when Linux is failing, my phone connects fine, other
>>> computers connect fine, and this machine with Windows 7 as well. I've
>>> tried reloading the driver, rebooting, different module parameters,
>>> nothing works.
>>>
>>> I logged a session [2] where I waited 30 minutes for the link to come
>>> up, but it never did. You can see the same thing happening over and
>>> over:
>>>
>>> 1382936199.582861: nl80211: Association request send successfully
>>> 1382936199.797063: nl80211: Event message available
>>> 1382936199.797097: nl80211: Delete station e0:1d:3b:46:82:a0
>>> 1382936199.797881: nl80211: Event message available
>>> 1382936199.797905: nl80211: MLME event 38; timeout with e0:1d:3b:46:82:a0
>>> 1382936199.797915: wlan0: Event ASSOC_TIMED_OUT (15) received
>>> 1382936199.797920: wlan0: SME: Association timed out
>>> 1382936199.797924: Added BSSID e0:1d:3b:46:82:a0 into blacklist
>>>
>>> If I reboot the router, it works immediately, another thing that works
>>> is connecting with ad-hoc mode (mode=1), and then back to normal mode
>>> (mode=0).
>>>
>>> Here's a log [3] where I tried reloading the module multiple times and
>>> finally tried ad-hoc mode, after which the link came up.
>>>
>>> Clearly the Linux kernel has a bug. Can somebody point out what needs
>>> to be done to get this fixed?
>>>
>>> Cheers.
>>>
>>> [1] http://article.gmane.org/gmane.linux.kernel.wireless.general/108004
>>> [2] http://people.freedesktop.org/~felipec/wpa/wpa-bad-30-min-wait.log
>>> [3] http://people.freedesktop.org/~felipec/wpa/wpa-good-nothing-worked-except-mode-switch.log
>>>
>>
>> Heh... this logs look like miracle :)
>> My first assumption would be buggy router. There is no answer in
>> wpa_supplicant log.
> 
> Yeah, I bet the router is buggy, which router isn't? But why Windows 7
> connects fine?

May be it includes some workaround?
You do not need to fight with devs, i think they are agree that some
thing is wrong. But believe me, there are so many access points, which
make problems or wear things. If you have a bug, does not mean other
user have it.
If it depends on some AP option, it would be good to know which one.
Then it will be easier to find some fix.

Beside, how many clients use this AP? How big is the distance? What do
you configure in AdHock mode?

>> Take wireshark and capture working and not working associational request.
> 
> I'll try that. If only it was that easy to get a working association.

Compare it with windows.

and please read this, it will help to provide more information.
http://wireless.kernel.org/en/users/Documentation/Reporting_bugs

-- 
Regards,
Oleksij