[OpenWrt-Devel] RT5350F WiFi interface performance issue

[Zoltan Gyarmati]

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,
>
> 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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