I have connected the Soundbar to my TV and router. Beside that I have 2 Play 1, and 2 Play 3 and a Sub. When I play music from Itunes the music is poping on and off from the speakers Play 1, and Play 2. The TV, Soundbar and Sub is working with no problems. I have done and tryed everything descriped in Sonos "problemshooting". The problem starts for a year ago, I think, and not solved yet. I have downloaded the playlist from itunes to my IPhone and Ipad. The problem does not occure when playing radio.