Trouble connecting to broadcom AC APs?

Ben Greear greearb at
Fri Mar 21 13:41:47 EDT 2014

On 03/21/2014 12:07 AM, Janusz Dziedzic wrote:
> On 21 March 2014 07:01, Janusz Dziedzic <janusz.dziedzic at> wrote:
>> On 20 March 2014 20:23, Ben Greear <greearb at> wrote:
>>> On 03/20/2014 12:17 PM, Adrian Chadd wrote:
>>>> Did the per-rate transmit statistics ever make it into the firmware / driver?
>>>> I'd start by looking at what rate(s) it's trying and what the transmit
>>>> completion statistics say. It could be doing something exceedingly
>>>> dumb like transmitting on an invalid rate or stream setup.
>>>> Same deal with STBC/LDPC. Try disabling those; see what happens.
>>> It appears the packets get to the AP, and AP at least tries to
>>> respond.
>>> If we bring up stations one at a time instead of multiple at once
>>> it works better, and using ddwrt works better than stock firmware
>>> on the AP too.
>>> Anyone know how well monitor mode works on ath10k?  Would be nice
>>> to see what is actually on the air.
>> With AP firmware, works fine. Could you send airlogs?
> BTW, I have same problem with WRT54G and orginal linksys SW - my home router.
> Problem disappears when will use FW 636 :)
> So, seems AP (389, 467) FW is not the best choice for STA mode.
> I suspect PS problem here - but didn't check this yet ...

Here is another data point...if we make br0 on the AP promisc,
then suddenly it works fine.

(we noticed this because starting tcpdump on br0 also
'fixes' the problem).


Ben Greear <greearb at>
Candela Technologies Inc

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