My (relatively) new Sonos Arc has been working quite well (~7 months) until now. The Arc is connected to a Samsung TV via HDMI cable and hard-wired via ethernet cable to my router. When I last tried to use the TV, I found that the TV audio will no longer play on the Arc. I also found that the Arc is missing from my Sonos app and missing from a speaker group that it was assigned to in my Alexa app. The Arc has a solid white LED illuminated next to the microphone icon, but no other outward indication that it is being powered.
I tried all of the steps recommended by Sonos to get the device reconnected but all attempts failed so far. I even tried to connect to Wi-Fi after unplugging the ethernet cable but the Arc still won’t connect. The TV does not appear to recognize that an Arc is connected to it anymore.
The TV’s Wi-Fi connection is fine, so I tried swapping the TV ethernet connection with the Arc ethernet connection. After swapping the ethernet connections, the TV continues to have internet connection but the Arc does not. I am at a loss how to troubleshoot further because of my inability to get any information from the Arc itself without either a wired or wireless connection.
Any ideas what I might try next?