Can't Add Libraries to my Plex Server for Initial Setup on my Synology NAS?

Plex Media Server NAS & Devices
1

I own a Synology DS1621+ NAS (DSM 7.x) and at the time of this post, my NAS has about 99% free space. I recently removed my SHR2 volume and replaced it with a new SHR1 volume. I’ve installed the latest installer for a Synology Intel x64 CPU. Since then, the issues I’m observing for initial setup of the Plex media server (1.31.1.6716-ca0c45ff8 - v 1.31.0.6654) shortly after installation of the server are:

  • When I try to add a library, I get the “Your changes could not be saved” error.

I have done the following to see if any positive change is achieved:

  • I ensured that the System Internal User profile had Read/Write access to my Plex share folder. I also ensured all subfolders in the share folder had the same permissions for that profile.

There was no positive change whatsoever. Any help would be greatly appreciated.

2

I recently ran into this problem, too. Not sure exactly which of these steps resolved it, but I:

  1. Edited the file permissions on the share, and selected “Custom” just so I could choose to “apply to all sub-folders” option

  2. After that, I stopped and re-started Plex Media Server

After doing above the error went away. Good luck!

3

I stopped Plex Media Server and restarted it on my NAS and it works like a champ. Thank you!

4

Folks,

Since DSM 7, we don’t actually have any control over the permissions assigned to the “PlexMediaServer” shared folder more than telling DSM we need “RW” permission.

DSM controls the rest.

I am concerned about which “Plex” share you’re discussing.

  • If discussing the old “Plex” share – that’s for you and perfectly OK to use as you deem appropriate.

  • If discussing the “PlexMediaServer” shared folder (because you’re putting media in there) —
    – I’m going to challenge you

Did you put media in the PlexMediaServer shared folder?

5

I’ve been using Plex for about 10 years. My share folder on my NAS did in fact have media in the shared folder.

The Plex share folder was simply a share folder I created via the File Manager on my Synology NAS. I then ensured that this folder had the appropriate read/write permissions for the PlexMediaServer profile.

I put a folder of media into that share folder and then tried to add them as a library when I initially ran Plex right after installing it. Trying to add a library at this point did not allow me to save my changes.

The moment I did blackngold75’s step 2, my problem was resolved.

The thing that threw me for a loop is I never had this problem with previous instances of Plex that I manually installed running on my Synology NAS.

6

@ChuckPa I was referring to a separate, shared folder where I store my media - not the “PlexMediaServer” folder that gets created on the Synology NAS.

7

Ditto for me.

8

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