Playback Error on all files after DSM7 install

Server Version#: 1.24.1.4931
Player Version#: 1.24.1.4931
NAS : Synology DiskStation DS218 with DSM 7

Hello,

After a DSM 7 upgrade, I struggle to update the Plex Media Server package but finally succeeded after dealing with the permissions, thanks to this forum.

However, not possible to read any videos on my Plex App (Shield TV) or from the Browser.

I get every time the following error :

I tried everything step by step, installing the last PMS package, updating permissions, removing and reinstalling with and without token, …

Finally I decided to try a last shot with uninstalling everything and start from scratch as if I was installing Plex from the first time. I proceeded like this :

  • Uninstall the package with the full cleaning option
  • Delete the Plex folder and recreate it with the proper permissions
  • Removing my NAS in the Server web interface
  • Install the last package available on Plex Website
  • Recreate my libraries

Everything went well:

  • All my media have been scanned
  • Media metadata did download and are well displayed

But unfortunately, still not possible to read a single video

It’s been 3 hours I’m trying to dig in the forum to find a solution but I can’t find…

Here are enclosed the logs, my last attempt to open a video was at 1:17 AM
Plex Media Server Logs_2021-09-07_01-19-30.zip (1.1 MB)

Thanks for your help and please inform me if you require further information

Have you given user PlexMediaServer (System Internal User) permission to read all the files? (using FileStation to force permissions if needed to propagate through all subdirectories)

I see the scanner running for some content so know at least some can be read.

I’m not entirely convinced the issue is PMS here. It might be the player. The logs are clean.

What are the playback settings?

  1. Original Quality
  2. No refresh rate change (the shield can do this natively)
  3. subtitle burning automatic

Hi @ChuckPa ,

Yes I did it and rechecked several times, in all media folders and subfolders where I try to open videos.
I tried with full control (custom) and read/write permissions.

The videos are in different format but I was able to read them with no issues before migrating to DSM7, I tried to read already seen movies and shows but issue is the same. I can’t even read the movies provided by Plex

That’s why I think it’s more a player issue than a permission one

Hi @trumpy81

Same comment that for @ChuckPa I already tried and recheckes this several times
With full control and R/W permissions

Since I can’t also read the Plex movies, I don’t think it’s a permission issue
Example from a movie provided by Plex

Thank you for your support

Hi,

I did exactly what you ask and got the same issue on the web browser with no possibility to read the videos.
However, I did try to launch from my Shield Plex app and it worked!

Don’t know if it came from the last update since I didn’t tried since yesterday and my first issues, but since I mostly use Shield, then fine for me!

Thanks for your support

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