wifibroadcast stop randomly

[carabidulebabat]

Hello, the system work great but sometimes, it take really long to get the video feed, and sometimes need to reboot the vrx, its happen at my 2 kwad with wifilink.
When it not work and go to ssh and type wfb-cli gs its say connection failed.
When type lsusb my wificard is recognsyze, I use rtl8812au bl af1 in 3V3 directly on my radxa without additionnal component like a fan.
Thanks you very much if is exist a way to fix the problem