After upgrading Windows 10 to 11, when I open Plex, there isn’t my librairies, and the possibility to add an librairy. Plex ask to install media server,bu it’s already installed. I tried to uninstall the media server, clean the plex directory in the %appdata%, and reinstall it.
I switched the network to private, uninstall plex server and cleaned the registery (delete folder plex in “hkey_current_user/software/plex”. And Reinstall Plex Media Server.