[OpenWrt-Devel] RT5350F WiFi interface performance issue

[Koen Vandeputte]

On 27-05-18 00:07, 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?

- iw phy0 info
- iw wlan0 info
- iwinfo
- dmesg (just to be sure)



Thanks,

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


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