I have a DS918+ which has been happily running plex until it told me i needed an update, since then it no longer sees the media located on the NAS.
All my media is located in a directory called Media_Files which the plex account has R/W access to but upon accessing the plex server it tells me to install a plex server.
I have tried removing and re adding the app and also in a moment of pure madness created and removed accounts.
Server Version#: 1.19.4.2935-79e214ead
Player Version#: Any
It’s possible that if you upgraded from an old enough version (I forget where the change occurred) Plex Media Server was running with admin privileges; it no longer does so, and hasn’t for a while. So, it may be worth your time to check the access permissions for the Plex user to ensure it has access to your media; this post describes the requirements:
I checked that and permissions are fine, what i have noticed is that even if i delete the service and app if i reinstall i don’t go through first setup which i thought would be the case.