I have a problem. I can't connect my Android TVs to my main wi-fi network. When I try to connect, it says that it couldn't find the network, it won't accept connection and even WPS it doesn't work. Although it can connect to the guest network without issue.
Thing to point out.
I have a CCTV system that has a connection to the main network. So it has a preferred IP address and uses port forwarding at port 80 and 37777.