@groot-stuff Thanks for the tip. Plex's server claim process is ridiculous. Particularly when their data breach forced users to change passwords and thus have to go through the painful claim process.
The process for me, in detail:
Stop the Plex Server. In my case it is a container
Modify Preferences.xml to remove:
PlexOnlineHome="1"
PlexOnlineMail="
[email protected]"
PlexOnlineToken="XXXXXXXXXXXXXXXXXXXXX"
PlexOnlineUsername="YourUserName"
For me this involved
ssh <unraid IP>
cd /mnt/user/appdata/PlexMediaServer/Library/Application Support/Plex Media Server
vim Preferences.xml (maybe make a copy first in case you screw it up)
remove the entries listed above and save
Generate Claim Code from https://www.plex.tv/claim/. This starts your 4 minute clock so get to the next steps quickly
Edit PlexMediaServer container configuration from the Docker UI un Unraid. Add the Claim code as a key (PLEX_CLAIM=claim-xxxxxx).
Save container configuration
Start Container
In a Private Browser, load Plex webui (http://UNRAID_IP:32400/web)
Sign in. This will prompt you with a few questions about pinning library. Click Finish and your Libraries should be back to normal
This process is ridiculous and made worse by the 4 minute timer. I had to attempt it 3 or so times.