So confused .. Why isn't plex indexing my files?

[tom80H]

Sounds like you might have a permission issue.
PMS is running under a specific system/functional user on your NAS. That user needs access to your media in order for Plex to see / catalogue your files.

What version of DSM do you have installed on that Synology NAS?
That’ll define which user you need to give access (and where to do it).

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

FAQ 19: Setting permissions to allow Plex access to media files Before beginning, it’s important to remember one key point; Plex doesn’t have any special privileges on Synology except for being able to access the Video Transcoding acceleration hardware. It cannot read any of your files unless you expressly grant permission. This is a fundamental principle of Linux (which Synology uses for DSM) Because of how Synology grants permission, access to files is broken into two different …