Plex server disappeared from the console after DSM 6 upgrade to 7

[ChuckPa]

As sometimes happens, PMS forgets it’s YOUR PMS during the upgrade.

I think it has something to do with network / ISP but could never figure it out.

The solution , however, is simple.

In the rewrite for DSM 7, I was able to provide an installation menu/GUI.
The functionality is limited but does provide the important elements

For you, you want the following steps

1. Uninstall Only (Keep all files for future reinstallation) – you’ll see why momentarily

2. Reinstall the same package again , HOWEVER
   – select the ‘New or Lost Servers’ button (Plex Claim Token method)
   – Click the hyperlink .
   – New tab opens with that claim-xxxxx token displayed
   – COPY to your browser
   – Return to the installation menu
   – PASTE the token in the box on the installation menu page
   – Click NEXT - NEXT - DONE

After installing the software again, the package installer will next use that claim token to get new credentials for your server

When it completes, If all has been successful,

1. The installation is OK
2. The installer will show your Plex Username
3. The installer will show your Plex Email

(Username and Email confirm the server is your server again)

NEXT – You will need to grant permission for the new DSM 7 username ( PlexMediaServer ) to read your media. This was a DSM 7 mandated change.

Synology FAQ - Questions, Answers, and a few How-To's

FAQ 29 - DSM 7 - Give PlexMediaServer access to your media When you migrate to DSM 7, or are installing a server for the first time, folks forget to read the popup at the end of every installation which tells them about how to set permissions. This FAQ shows in detail how to do what those instructions state. When might you need to perform these steps? When upgrading, changing permissions from Plex to PlexMediaServer is overlooked. Installing Plex for the first time, new installation…

NOTE: The Syno FAQ has a number of DSM 7 specific articles to assist in the transition