To give a bit more info, the firmware is 3.0.22
And as I speak, the 5ghz wifi SSID is not visible anymore in my phone's wifi network list and in wifi analyzer.... (Although it is "on" in the router's config web interface)
My first post in this community :)
I got 2 AX3600 routers and I have a 5ghz issue.... When I reboot the routers (currently configured as "Singapore" region although I live in Belgium for mesh configuration reasons), I have very good stability both in 2.4 and 5 GHz but after a while...