Server Version#: 1.31.0.6654
Player Version#: N/A
As shown in the logs below the DLNA process is unable to start up when the option is enabled via the web UI. This prevents DLNA clients from accessing the Plex library:
Feb 22, 2023 00:57:16.923 [0x7f2e4ea86b38] Info — Completed: [192.168.2.42:48570] 200 PUT /:/prefs?DlnaEnabled=1 (9 live) TLS GZIP 1ms 336 bytes (pipelined: 7)
Feb 22, 2023 00:57:17.146 [0x7f2e4eeb6b38] Debug — Jobs: '/usr/lib/plexmediaserver/Plex DLNA Server' exit code for process 923 is 255 (failure)
Feb 22, 2023 00:57:17.146 [0x7f2e475cab38] Debug — [ChildProcessMonitor] Plex DLNA Server exited.
Feb 22, 2023 00:57:17.146 [0x7f2e475cab38] Debug — [ChildProcessMonitor] attempting to relaunch Plex DLNA Server; attempt number 1, 2 tries remaining
Feb 22, 2023 00:57:36.747 [0x7f2e475cab38] Debug — [ChildProcessMonitor/JobRunner] Job running: "/usr/lib/plexmediaserver/Plex DLNA Server"
Feb 22, 2023 00:57:36.970 [0x7f2e4eeb6b38] Debug — Jobs: '/usr/lib/plexmediaserver/Plex DLNA Server' exit code for process 967 is 255 (failure)
Feb 22, 2023 00:57:36.970 [0x7f2e475cab38] Debug — [ChildProcessMonitor] Plex DLNA Server exited.
Feb 22, 2023 00:57:36.970 [0x7f2e475cab38] Debug — [ChildProcessMonitor] attempting to relaunch Plex DLNA Server; attempt number 2, 1 try remaining
Feb 22, 2023 00:57:56.570 [0x7f2e475cab38] Debug — [ChildProcessMonitor/JobRunner] Job running: "/usr/lib/plexmediaserver/Plex DLNA Server"
Feb 22, 2023 00:57:56.805 [0x7f2e4eeb6b38] Debug — Jobs: '/usr/lib/plexmediaserver/Plex DLNA Server' exit code for process 1008 is 255 (failure)
Feb 22, 2023 00:57:56.805 [0x7f2e475cab38] Debug — [ChildProcessMonitor] Plex DLNA Server exited.
Feb 22, 2023 00:57:56.805 [0x7f2e475cab38] Error — [ChildProcessMonitor] Plex DLNA Server exited 3 times in less than 60 seconds; giving up.