Nightmare. I keep losing the connection since adding a forth sonos device (a Move). Help pages are terrible, keep going around in a loop of things already tried, still no fixes. Loads of other people having same connection issues but sonos are not listening or resolving. Where is the corporate honesty about known issues? John Lewis and Currys PC World happy to sell the kit but no help when connection keeps failing. If I could swear here I would. So many wasted hours and spoiled listening.