Squeezebox Touches Rebuffering constantly

I have been using 3 Touches in 3 different rooms for years with relatively few problems but in the last couple of months when I am trying to play Spotify using latest Spotty on LMS 8.00 they very rarely play two tracks in a row without rebuffering or not connecting. There is more silence than music now :-(

Does anyone know why this is happening now?
The wi-fi hasn’t changed and is pretty strong in each room especially the one in the lounge where the router is, but it’s as bad as the others. It’s really getting me down.

Thanks in advance.
Gordon