@Mutch thanks for the reply so is it as simple as plugging one Ethernet to the main defo spare port and then running cable to any of the deco's on first floor?

I have 6 x20 s to cover a large three floor house - it's in the Middle East so built of thick heavy concrete with high Ceilings. I have three deco's on the ground floor, two on the 1st floor and 1 on...