I’m running plex media server on my headless NUC (Ubuntu 18.04.3 LTS). I am not able to play any files on it since a couple of days now. It used to work fine before.
The first problem is that my server is unclaimed and it doesnt show up on my TV app. I tried logging in to <server_ip>:32400/web and tried claiming the server, but it keeps spinning and doesnt work.
And when i try to play videos from my safari browser on <server_ip>:32400/web i get a
“Conversion failed. A required codec could not be found or failed to install.” The file is h264, and it should do direct play instead of transcoding.
All the requests to https://plex.tv from Plex Media Server timed out including the ones relating to claiming the server
you could use curl in a linux command line shell on the server and see if it gets to plex.tv - one you could try is this command. You should get back a response xml with error 1001 curl https://plex.tv/media/providers?X-Plex-Token=
The Plex Media Server log shows all internal requests within the local network or loopback working ok but no external requests succeeding - may be you have some firewall / security blocking Plex Media Server from going to the internet