Hi,
Recently I used Raspberry Pi4 as main router (wifi disabled, lan ip 192.168.10.1) and turned RT-AC68U to AP mode (lan ip 192.168.10.9) for wired/wireless network extender. Two routers are connected by cable. Everything works fine except guess wifi. The devices in guest network can still access my lan which is not expected. It was ok when using RT-AC68U in router mode, the only thing changed is gateway and DNS to 192.168.10.1 after switching to AP mode.
What is the problem?
Recently I used Raspberry Pi4 as main router (wifi disabled, lan ip 192.168.10.1) and turned RT-AC68U to AP mode (lan ip 192.168.10.9) for wired/wireless network extender. Two routers are connected by cable. Everything works fine except guess wifi. The devices in guest network can still access my lan which is not expected. It was ok when using RT-AC68U in router mode, the only thing changed is gateway and DNS to 192.168.10.1 after switching to AP mode.
What is the problem?