Hello, 

Have M5 in AP mode with guest network isolation enabled. 

However, when connected to the guest network through the M5 I am able to access the router IP address (192.168.1.1) to make changes to the main router. 

When I am connected to the guest network via the main router I am blocked from accessing the router set-up. 

I do not want those on the guest network to have access to the main router set up. Am I doing something wrong with the M5?

Thanks for your assistance.