@jon_zdsk
Much better.
The only remaining thing to do with this is to FORCE restart the player.
Don’t use a FQDN to access your PMS from that 216.x.x.x IP address.
Go through the normal https://app.plex.tv (or the Plex apps)
After you update your certificate, you ca then use the FQDN again.
For reference in case you need it: