RE: rtw88: rtl8822cs AP mode not working

[Ping-Ke Shih <pkshih@realtek.com>]

Hi Martin,

> -----Original Message-----
> From: Viacheslav <adeep@lexina.in>
> Sent: Thursday, January 11, 2024 2:19 PM
> To: Ping-Ke Shih <pkshih@realtek.com>; linux-wireless@vger.kernel.org
> Cc: Jernej Škrabec <jernej.skrabec@gmail.com>; Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> Subject: Re: rtw88: rtl8822cs AP mode not working
> 
> 11/01/2024 03.42, Ping-Ke Shih пишет:
> >
> >
> >> -----Original Message-----
> >> From: Viacheslav <adeep@lexina.in>
> >> Sent: Wednesday, January 10, 2024 7:05 PM
> >> To: Ping-Ke Shih <pkshih@realtek.com>; linux-wireless@vger.kernel.org
> >> Cc: Jernej Škrabec <jernej.skrabec@gmail.com>; Martin Blumenstingl
> <martin.blumenstingl@googlemail.com>
> >> Subject: Re: rtw88: rtl8822cs AP mode not working
> >>
> >> Hi!
> >>
> >> 10/01/2024 12.15, Ping-Ke Shih wrote:
> >>>
> >>>
> >>>> -----Original Message-----
> >>>> From: Viacheslav <adeep@lexina.in>
> >>>> Sent: Wednesday, January 10, 2024 3:07 PM
> >>>> To: linux-wireless@vger.kernel.org
> >>>> Cc: Ping-Ke Shih <pkshih@realtek.com>; Jernej Škrabec <jernej.skrabec@gmail.com>; Martin Blumenstingl
> >>>> <martin.blumenstingl@googlemail.com>
> >>>> Subject: rtw88: rtl8822cs AP mode not working
> >>>>
> >>>> Hello!
> >>>>
> >>>> We use RTL8822CS modules in our devices and we switched to rtw88 from an
> >>>> external driver by Realtek. Suddenly we discovered that the AP mode
> >>>> (hotspot) stopped working. The hotspot is set up, but it does not
> >>>> authorize client connections.
> >>>>
> >>>> In attacments log and config files.
> >>>>
> >>>> client - notebook with iwlwifi 0000:00:14.3: Detected Killer(R) Wi-Fi 6E
> >>>> AX1675i 160MHz Wireless Network Adapter (211NGW), REV=0x370
> >>>>
> >>>
> >>> It is probably because RTL8822CS doesn't issue beacon properly. Trying to
> >>> capture air packets will be helpful to clarify the problem.
> >>
> >> airdump-ng result in attachment.
> >> I don't see any captured beacon packets.
> >
> > So, that is the problem. Did you see any weird messages in kernel log when
> > you were starting hostapd?
> >
> >
> dmesg/journalctl is clean. No messages related to wifi.
> 

Have you ever tried AP mode on SDIO interface wifi cards, like RTL8822CS? 
It seems no beacon issues properly, but no obvious errors during starting
AP mode. 

I don't have this kind of wifi cards, could you help to check if AP mode
works in your side?

Thank you
Ping-Ke