Spotify keeps dropping out when playing through the Sonos App. I keep getting the error message "the connection to Spotify was lost". I've been using this set up (2 play 1's stereo) for a few months now and have never hand a single problem or drop out or lost connection. I haven't changed anything to my set up and now its basically unusable. After doing a number of full power cycles to all components including modem and bridge the problem is still occurring. When I play music from my iTunes library through the sonos app the system works fine. Please help! This set up has been perfect up until now any advice would be much appreciated.