Hello @David-TP, I do have a TP Link switch in the 'server room', so it's: ISP provider -> CAT6 from optical converter (sever room) -> CAT6 in the wall -> main deco (living room) -> CAT6 in the wall...

After a discussion with phone support, I have removed the TP Link Router from my setup and the first Deco is now the receiver of internet connection. I changed all cables for CAT6, yet the other 2...

I had it setup in Access Point mode.

Hello, I have 3 X20 Deco units, all connected to the main router via Ethernet cables. The main unit in the living room works fine. Another unit upstairs also works fine. But whatever I do, the third...