Hello
In a large room there are 3 stereo pairs of Sonos One speakers.
They connect via Wi-Fi and there is a PC with Windows 10 connected via Ethernet to the router. There is iTunes streaming music from Apple Music via Airplay.
When I start the music all speakers sound good however after a while they gradually becoming out of sync and thus echoing. The speakers are brand new.
Could you please help how can I fix this problem?
Thank you!