Wade-Lumen

I found more info to share on your issue. Similar setup. But, the Tray only can connect if it is running as the same user the service is running as.

I uninstalled and reinstalled using my normal account instead of the one I set up specific for the service and see the same thing you are. Under that account it...

Kill the tray and stop the service Go to C:\USERS\YourID\Appdata\Local\Plex Service, wipe the files in that folder and start the service, then launch the tray. Seemed to do the trick...

I had the issue with 1.2.1.0 before I noticed 1.2.2.0, but had the same issue with both. It's working with 1.2.2.0 now that I cleared the settings under the userid...