Very disappointed. Setting up the first one in my office on the ground floor was easy enough but upstairs nothing, not even a hint of connection. Connection to TP link lost when moving to next room on the ground floor. It kept telling me that connection to my wifi had been lost and to go back to where it would connect again, unfortunately this was my office and as soon as I left my office I lost connection. My fixed line telephone plugs directly into my old wifi box together with my desktop but with the Deco there's only provision for one other connection and no telephone socket. I'd forgo that if it worked and I had wifi throughout the house but no connection in the next room....... that's ridiculous. I'll go back to my old wifi box which at least has four ethernet sockets and two telephone sockets.