Sync the NAS with a public NTP server. This verifies the time is correct and the NAS can communicate with the Internet.
Synology Control Panel → Regional Options → Time tab → Synchronize with NTP server.
Point a browser at the IP address of the NAS: https://nas_ip_addr:32400/identity.
You should see a line of XML with claimed=0 or claimed=1.
If claimed=0, then the server is unclaimed. Follow FAQ 31: Reset / Reclaim PMS on DSM 7 (Not Authorized - Locked Out).
If claimed=1: Provide a set of server log files
- Stop Plex Media Server and wait 1 minute.
- Start Plex Media Server (to log the startup)
- Wait 3 minutes for Plex to fully start and log the startup sequence.
- Stop Plex Media Server
- Using File Station, navigate to the Plex Data Folder. Right click on the Logs directory and choose to compress to logs.zip.
- Download the zip file and post it to the thread.