Sonos Support doesn’t frequent this Community forum, you would need to call them directly to speak with them. 

I haven’t read the LED states FAQ recently, but if memory serves, ‘going green’ means that your Sonos devices are connected to your network and/or temporarily muting. Before calling in, I’d probably read the wifi interference FAQ, and also do a network refresh, by unplugging all Sonos devices from power, then rebooting the router. I’d give the router a couple of minutes to come back up before plugging in the Sonos devices.

If that fails to clear the issue, I’d call in.