I always need a miracle to connect with iwlwifi

Felipe Contreras felipe.contreras at gmail.com
Mon Oct 28 16:06:04 EDT 2013

On Mon, Oct 28, 2013 at 1:27 PM, Krishna Chaitanya
<chaitanya.mgit at gmail.com> wrote:
> On Tue, Oct 29, 2013 at 12:13 AM, Felipe Contreras
> <felipe.contreras at gmail.com> wrote:
>> On Mon, Oct 28, 2013 at 12:28 PM, Krishna Chaitanya
>> <chaitanya.mgit at gmail.com> wrote:
>>> On Mon, Oct 28, 2013 at 11:30 PM, Felipe Contreras
>>> <felipe.contreras at gmail.com> wrote:
>>>> The authentication response does come back in both cases though, it's
>>>> just the acknowledgement that is missing. Unfortunately I cannot
>>>> figure out for which message it's the ack.
>>>> Also, I notice the sequence number received from the router doesn't
>>>> seem to change. All the authentication requests received have the same
>>>> number (256). Another peculiar thing is that in the failed case the SN
>>>> we send starts with 0.
>>>> I suppose since the authentication ack never arrives, the next steps
>>>> are never completed.
>>>> Does that help?
>>> From the supplicant logs we have successfully received the
>>> authentication response
>>> and sent out the association request. So are you referring to not receiving ACK
>>> for association request??
>> No, from the capture there's no association request in the bad case,
>> only in the good one.
>>> It would be nice to get the capture without any filters?
>> http://people.freedesktop.org/~felipec/wpa/wpa-bad.pcapng
>> http://people.freedesktop.org/~felipec/wpa/wpa-good.pcapng
> From the logs we can see that we have received authentication response,
> so the association request is getting dropped somewhere? We might
> need the mac80211 and iwlwifi trace-cmd logs to check for the drop.
> http://wireless.kernel.org/en/developers/Documentation/mac80211/tracing

There you go:

Felipe Contreras

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