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From: Krishna Chaitanya <chaitanya.mgit@gmail.com>
Date: Tue, 21 Oct 2014 15:27:16 +0530
Message-ID: <CABPxzYLm98e6p8jojCxHeaQRfhyLH+jaMHYWj1K+BqhhwtsRYg@mail.gmail.com> (sfid-20141021_115748_541425_219CA940)
Subject: Re: iwlwifi: Reason 7 periodic disconnect
To: Emmanuel Grumbach <egrumbach@gmail.com>
Cc: Felix Fietkau <nbd@openwrt.org>,
	=?UTF-8?Q?Lauren=C8=9Biu_Nicola?= <lnicola@dend.ro>,
	Dan Williams <dcbw@redhat.com>,
	linux-wireless <linux-wireless@vger.kernel.org>
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Sender: linux-wireless-owner@vger.kernel.org

On Tue, Oct 21, 2014 at 2:46 PM, Emmanuel Grumbach <egrumbach@gmail.com> wrote:
> On Tue, Oct 21, 2014 at 12:05 PM, Krishna Chaitanya
> <chaitanya.mgit@gmail.com> wrote:
>> On Tue, Oct 21, 2014 at 2:05 PM, Felix Fietkau <nbd@openwrt.org> wrote:
>>> On 2014-10-21 10:23, Laurențiu Nicola wrote:
>>>> It's an ASUS RT-N66U running NEWD-2/K3X from r24160.
>>> This is a Broadcom based device, so it should behave in the same way as
>>> other APs/Routers running the Broadcom drivers.
>>> The driver should only send Reason 7 when receiving a PS-Poll, BlockAck,
>>> BlockAckReq or Action frame from a station that's not associated, so
>>> probably it has already kicked out your iwlwifi client earlier. Not sure
>>> why that doesn't show up in the log though.
>>>
>> May be iwlwifi is dozing and did not Rx that frame?
>
> yep - this is most probably what happens. iwlwifi goes to sleep and it
> get a deauth that it doesn't hear. Then it wakes up with an NDP and
> gets kicked out.
> But shouldn't the deauth be buffered and indicated through the TIM IE?

Yes, but not all AP's do that, at least the one i faced the issue was
not doing that.


-- 
Thanks,
Regards,
Chaitanya T K.