Are you using DLNA to access Plex or e.g. the Plex for Kodi plugin?
The latest update has disabled DLNA by default … so you might need to re-enable it.
From Plex Media Server - #296 by Ridley
- Set the DLNA server feature to be turned off by default. It can be manually re-enabled if required in Plex Web’s server settings (#10530)
