I may be switching from ATT to a local fiber provider. I now have the TP mesh network (3 of the AX4000 units) set up with the ATT router which would go away. What kind of router do I need for the mesh

Outlook keeps asking me to log into router. Why? In my office I had my PC hitting the X55 in the room wirelessly. To improve the connection, I connected the PC to the deco x55 with an Ethernet cable.

I cannot find this simple request anywhere on the TP link site or google. How do I turn it ON?

I thought I saw where you could locate the best spot for a satellite?

I just set up my mesh network to an ATT router. Can I change the satellite deco from 2.4 GHz to 5 Ghz and do I want to? The main deco and router is about 40 feet away and down one level.