I've purchased a 3x pack of Deco M4 routers.

I suspect the main one is not working fine, this is the router that connect to internet.

I would like to:

- remove the main router from the network, because I suspect is not working fine

- take another router (I have 2 more in the network) and select it as the new main

- setup the internet connection in the new main router (since I removed the main, this was the router responsible for connecting to Internet)

Which are thr right steps to do this?

Is there any guide to do this?

Thanks in advance.