Plex forcing account login after update on Synology DS220+

Server Version#: 1.40.2.8395-7000
Player Version#:
I don’t have server logs.
After updating my synology nas to the latest Plex version it is now FORCING me to log in to the web to do anything and none of my devices, all local network, can connect to my server now.

I need to know how to fix this or back out of this update.

Plex has required login for a long time.

given you want to allow server access without auth, there’s a manual way to configure this

  1. Install the Synology Text Editor app

  2. Stop Plex

  3. FileStation → PlexMediaServer / AppData / Plex Media Server

  4. Right-Click “Preferences.xml” → Open with text editor.

  5. On the last line, before the /> you want to add
    allowedNetworks="x.x.x.x/N.N.N.N

x.x.x.x is your network, e.g. 192.168.1.0
N.N.N.N is your netmask, e.g 255.255.255.0

In this case, it will look like

SomePref="Value" allowedNetworks="192.168.1.0/255.255.255.0" />
  1. Save the file
  2. Start Plex

Ref:
https://support.plex.tv/articles/200430283-network/
https://support.plex.tv/articles/201105343-advanced-hidden-server-settings/

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