Are you using the S2 app or S1?
if you use the S2 app, make sure you have the latest app update and speakers firmware update installed.
Try connecting the Connect to your router with an Ethernet cable and check for updates again.
Here is the support page with an explanation of what LED colors mean:
https://support.sonos.com/en-us/article/sonos-led-lights
Likely a hardware issue. If you are using the unit wirelessly, temporarily wire the unit to the network. If the unit is now wired, check the behavior of the network port lights. Try swapping the network ports.
Thank you both. I was thinking hardware as well. Will try the cable.
