Disconnecting controller

I used the search bar and couldn’t find anything about my situation.

We used linked controllers and the 2nd controller randomly disconnect and reconnect 5-6 seconds later.

Edit: Both controllers connect fine on their own, and the radio is at the very top of the robot with a clear view everywhere.

Do I need to swap the ports of the wire on the top? Do I need to change the wire? It is becoming impossible to drive and practice and is just annoying. Anything will help.

I would try changing out the wire first then try changing the port, it sounds like a physical connection issue