What's wrong with my home network?

This all began when the power went out this morning. I have several wireless routers, a network switch, and a starlink modem/router. Internet comes into the starlink box which has it's own network called 'MyLink'. From the box, it gets split to a network switch, which connects to all of the ethernet jacks and a second wireless router called 'MyLan'. The starlink has a second output that connects to a third wireless router called 'MyLink2'

The problem is I can connect to LAN and ping other computers, but they only operational internet over wifi is from 'MyLan'. It will work wherever I connect it over ethernet. NONE of the other routers has internet for phones or laptops. With the mindfuck of an exception of a smart TV which can get internet over MyLink2! None of the ethernet works for anything other than wherever MyLan is connected. I've tested it several places.

The connected to internet light is on for all routers and I've done a factory reset for all routers except the one that is working. Anyone have any ideas? I'm losing my god damn mind over this one. I remember a few years ago I had to contact my isp to reset my connection from their end. Could that solve the problem?