If you are on the same network as the NAS,
- Stop Plex Media Server & wait ~20 seconds for it to fully stop.
- Start Plex Media Server & wait 1 - 2 minutes for it to fully start.
- Point a private/incognito browser window at the IP address of the NAS. For example, if the IP address is 10.1.2.3, use http://10.1.2.3:32400/web (you may need to use https).
- See if you can login, reach server settings, and claim the server.
If that does not work, try FAQ 15: Claiming & Connecting to a troublesome Synology server.
EDIT: If you are comfortable with SSH and the Linux CLI, you can also use the User Credential Reset utility.
See the Readme for a sample run on a Qnap. It will look the same on a Syno.
When prompted, you’ll need a claim token from https://plex.tv/claim.
-
Login to the NAS via SSH and change to the /Plex shared folder (usually on Volume 1).
cd /volume1/Plex -
Download the script
wget -O UserCredentialReset.sh https://github.com/ChuckPa/UserCredentialReset/releases/latest/download/UserCredentialReset.sh
-
Make it executable:
sudo chmod +x UserCredentialReset.sh -
Run it:
sudo ./UserCredentialReset.sh -
When prompted, enter the code from https://plex.tv/claim.
Example: On a Ubuntu system
$ sudo ./UserCredentialReset.sh
Plex Media Server user credential reset and reclaim tool (Ubuntu 24.04.3 LTS)
This utility will reset the server's credentials.
It will next reclaim the server for you using a Plex Claim token you provide from https://plex.tv/claim
Please enter Plex Claim Token copied from http://plex.tv/claim : claim-nottherealtoken
Stopping PMS
Clearing Preferences.xml
Getting new credentials from Plex.tv
Claim completed without errors.
Username: FordGuy61
Email: <redacted>
Starting PMS
Complete.
$