James, are you running your server from a NAS?
I’m having the same issue, trying to set up a new Synology DS220 NAS. I’ve tried both the suggested beta build included on the NAS (1.21.0) and the most recent download available on the Plex page (1.25.2).
-‘server’ does not even show up in the left side settings menu
-when I hit the ‘+’ to add my media, it just takes me to the link to download media server, there is no way to add folders from my media server.
-the media server does show up in my PC’s ‘Network’ menu, but not in the “approved devices” tab within Plex settings.
I’ve searched for 2 days for the solution, Permissions is the most common cause, but my permissions are all set correctly.
Hopefully our problems have a similar solve 
Thanks!
Joshua
