[OpenWrt-Devel] RT5350F WiFi interface performance issue

[Koen Vandeputte]

On 27-05-18 01:08, Zoltan Gyarmati wrote:
> On 27.05.2018 00:29, Koen Vandeputte wrote::07, Zoltan Gyarmati wrote:
>>> Dear Koen&All
>>>
>>> On 25.05.2018 14:33, Zoltan Gyarmati wrote:
>>>> On 25.05.2018 14:03, Koen Vandeputte wrote:
>>>>>
>>>>>
>>>>> On 2018-05-25 13:30, Zoltan Gyarmati wrote:
>>>>>> Dear All,
>>>>>>
>>>>>>  I'm testing the current OpenWrt  (master/HEAD) on RT5350F 
>>>>>> Olinuxino. Unfortunately the WiFi interface doesn't seem to work 
>>>>>> properly in client mode. `iwinfo wlan0 scan` runs successfully 
>>>>>> and shows my AP, but when i configure the interface as client and 
>>>>>> try to connect, the authentication seems to be successful 
>>>>>> (according to dmesg), but the wlan0 interface never gets IP 
>>>>>> address, even if i explicitly call udhcpc. If i set a static IP 
>>>>>> address for wlan0, and ping my AP, i have around 88% packet loss. 
>>>>>> There is no any relevant message in dmesg which could give a hint 
>>>>>> about the reason.
>>>>>>
>>>>>> As a counter-check, i flashed the an old OpenWrt image from the 
>>>>>> HW vendor with kernel 3.18, and with that one the WiFi interface 
>>>>>> works properly.
>>>>>> Does anyone else experience similar issues (either on this or any 
>>>>>> other RT5350F board)? Do you have any advice what to look into to 
>>>>>> sort this out?
>>>>>>
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>
>>>>> Hi,
>>>>>
>>>>> When you build master, did it already contain commit "hostapd: 
>>>>> update to git HEAD of 2018-05-21, allow build against wolfssl" ?
>>>>> Could you also try to build the 18.06 which does not contain this 
>>>>> one and compare?
>>>>>
>>>>> You never know..
>>>>
>>>> No, it didn't have that commit yet. Now i build an image with this 
>>>> new hostapd version and  I'll report. Thanks for the hint!
>>>
>>> It's the same behavior with the newer hostapd version as well. It 
>>> seems I'll have to look into how to debug WiFi performance issues...
>>>
>> Hi Zoltan,
>>
>> When the issue appears, could you run following commands please and 
>> share the output?
>>
>
> My untrained eyes didn't spot anything unusual, but here are the outputs:
>> - iw phy0 info
> https://pastebin.com/2hQ5wbng
>
>
>> - iw wlan0 info
> https://pastebin.com/NPZZ1dBL
>
>
>> - iwinfo
> https://pastebin.com/RHuJuYYu
>
>
>> - dmesg (just to be sure)
> https://pastebin.com/1kTUY9t4
>
>
Thanks for the dumps.
I see you are connected using channel 13 and HT40, but channel 12 and 
channel 14 next to it are marked as "No IR"

Could you try 1 more thing please?
Please put the AP manually on channel 1 and retry.

Thanks,

Koen

>>
>>
>>
>> Thanks,
>>
>> Koen
>>>
>>>>
>>>>>
>>>>>
>>>>> Koen
>>>>>
>>>>> [1] 
>>>>> https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=69f544937f8498e856690f9809a016f0d7f5f68b
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>> Regards,
>>>
>>> Zoltan Gyarmati
>>> https://zgyarmati.de
>>>
>>
>
>
> Zoltan Gyarmati
> https://zgyarmati.de
>


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