My Sonos controller has suddenly started to not access my library. If I restart the controller it works fine but only for so long then it says I need to connect to our network. The laptop that the controller is on and is directly linked to our library is also wired into the hub. I do not use wifi for the library or laptop that has the controller on it. As I said it has worked perfectly since I've had the Sonos (five years) but has suddenly started doing weird things. Any help would be appreciated. I can still use the Sonos to access other music services, it only affects the local music library.