Ok so this is odd, since moving the controller upstairs closer to the relays and landing HR92, the controller has now lost comms and temps from all of the HR92's that are on the ground floor, but hasn't picked up any sync or temps from the relays or HR92's upstairs. I am confused, it does still seem like somethings blocking the comms.

Can a fault evohome device be causing the issue and affecting all comms?