The message says Sonos app Plex service unable to contact the Plex Media Server. Please check your server settings at https://plex.tv and make sure that Remote Access is enabled.
When I go to the above web address and sign in, I don't see any option in settings on the web site to enable Remote Access.
However, on my local Plex server, remote Accress is enabled, firewall settings are correct, and port forwarding on my router is setup correctly.
I can connect remotely to my plex server from the plex app. I cannot connect to my plex server from the plex service within the Sonos app. I have authorized the Plex Account within the Sonos app.
What am I missing?