Server Version#: 1.25.2.5319-c43dc0277
Player Version#: Unknown
I reset my password at plex.tv due to a security concern and checked the box to log out any existing connections. Since then PMS is showing the attached error.
When you change your password and opt to sign-out all devices, this will also sign-out your server. In order to reclaim it you need to connect through the bundled version of Plex Web through the server’s local IP address.
Thanks Tom. For anyone else encountering this issue, following reclaim it may be necessary to logout/login to some devices (was still getting No content available through a browser on another computer).