Hi @dsand31786
If it works properly for a moment and then stops, it may just be a fault with the Port, unfortunately.
You can try a factory reset of the Port, but as it’s the only unit on the system, please be aware that this will erase any Sonos favourites, playlists, and preferences you have stored. Once done, you’ll need to set up a new system in the app.
If this does not fix the issue, I recommend you get in touch with our technical support team who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports.
I hope this helps.