I’ve been experiencing issues with Plex recently. Occasionally, movies stop playing and display a message indicating that the server is unreachable. There are no errors shown, just a hang followed by a restart.
I’m unable to pinpoint the cause from the logs. If anyone can shed some light, I’d greatly appreciate it.
4.157.0 is the Plex Web version.
The Plex Media Server version is 1.42.2.10156.
It looks like Plex Media Server is losing contact with the NAS holding your media.
The process repeats every two hours (see entries from Plex Media Server.3/4/5.log below)
Is Plex Media Server configured to scan the libraries every two hours? If not, is there some other process running every two hours?
Check the network connection on the NAS, verify the NFS/SMB mounts are stable, permissions are correct, etc.
Jan 26, 2026 17:41:13.830 [135457693784888] DEBUG - * Scanning /nas/moviestank
Jan 26, 2026 17:41:13.830 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank
Jan 26, 2026 17:41:13.862 [135457693784888] DEBUG - * Taking 1328 items out of the map (which has 2179 items) for being unavailable.
Jan 26, 2026 17:41:13.969 [135457693784888] DEBUG - * Taking 1320 directories out of the map (which has 1531 dirs) for being unavailable.
Jan 26, 2026 17:41:13.969 [135457693784888] DEBUG - * Taking directory 'movies/12 Angry Men (1957)' (8261) out of map.
Jan 26, 2026 17:41:13.969 [135457693784888] DEBUG - * Taking parent directory 'movies' (8235) out of map.
Jan 26, 2026 17:41:13.969 [135457693784888] DEBUG - * Taking parent directory '' (617) out of map.
Jan 26, 2026 17:41:13.969 [135457693784888] DEBUG - * Taking directory 'movies/Argylle (2024)' (8262) out of map.
Jan 26, 2026 17:41:13.969 [135457693784888] DEBUG - * Taking parent directory 'movies' (8235) out of map.
Jan 26, 2026 17:41:13.969 [135457693784888] DEBUG - * Taking parent directory '' (617) out of map.
From Plex Media Server.3.log
Jan 26, 2026 17:36:05.379 [135457693784888] DEBUG - * Marking media not available in /nas/audiobooks
Jan 26, 2026 17:41:05.383 [135457693784888] DEBUG - * Marking media not available in /nas/movies/Documentaries
Jan 26, 2026 17:41:10.004 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank/kids
Jan 26, 2026 17:41:13.830 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank
Jan 26, 2026 17:41:14.017 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank/movies
Jan 26, 2026 17:41:24.411 [135457693784888] DEBUG - * Marking media not available in /nas/musictank
Jan 26, 2026 17:41:51.578 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank
Jan 26, 2026 17:41:51.740 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank/tv
Jan 26, 2026 19:36:05.410 [135457693784888] DEBUG - * Marking media not available in /nas/audiobooks
Jan 26, 2026 19:41:05.408 [135457693784888] DEBUG - * Marking media not available in /nas/movies/Documentaries
Jan 26, 2026 19:46:07.775 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank/kids
Jan 26, 2026 19:46:11.249 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank
Jan 26, 2026 19:46:11.422 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank/movies
Jan 26, 2026 19:46:19.391 [135457693784888] DEBUG - * Marking media not available in /nas/musictank
Jan 26, 2026 19:46:31.978 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank
Jan 26, 2026 19:46:32.119 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank/tv
From Plex Media Server.4.log
Jan 26, 2026 11:27:42.037 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank
Jan 26, 2026 11:27:42.214 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank/movies
Jan 26, 2026 11:27:48.805 [135457693784888] DEBUG - * Marking media not available in /nas/musictank
Jan 26, 2026 11:28:00.240 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank
Jan 26, 2026 11:28:00.370 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank/tv
Jan 26, 2026 13:27:35.947 [135457693784888] DEBUG - * Marking media not available in /nas/audiobooks
Jan 26, 2026 13:32:35.953 [135457693784888] DEBUG - * Marking media not available in /nas/movies/Documentaries
Jan 26, 2026 13:32:38.315 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank/kids
Jan 26, 2026 13:32:41.502 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank
Jan 26, 2026 13:32:41.678 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank/movies
Jan 26, 2026 13:32:49.664 [135457693784888] DEBUG - * Marking media not available in /nas/musictank
Jan 26, 2026 13:33:00.811 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank
Jan 26, 2026 13:33:00.938 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank/tv
Jan 26, 2026 15:32:35.984 [135457693784888] DEBUG - * Marking media not available in /nas/audiobooks
Jan 26, 2026 15:37:35.986 [135457693784888] DEBUG - * Marking media not available in /nas/movies/Documentaries
Jan 26, 2026 15:37:38.360 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank/kids
Jan 26, 2026 15:37:41.578 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank
Jan 26, 2026 15:37:41.753 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank/movies
Jan 26, 2026 15:37:48.872 [135457693784888] DEBUG - * Marking media not available in /nas/musictank
Jan 26, 2026 15:38:00.633 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank
Jan 26, 2026 15:38:00.779 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank/tv
From Plex Media Server.5.log
Jan 26, 2026 05:12:35.876 [135457693784888] DEBUG - * Marking media not available in /nas/audiobooks
Jan 26, 2026 05:12:36.011 [135457693784888] DEBUG - * Marking media not available in /nas/movies/Documentaries
Jan 26, 2026 05:12:37.929 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank/kids
Jan 26, 2026 05:12:41.080 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank
Jan 26, 2026 05:12:41.255 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank/movies
Jan 26, 2026 05:12:47.596 [135457693784888] DEBUG - * Marking media not available in /nas/musictank
Jan 26, 2026 05:12:57.130 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank
Jan 26, 2026 05:12:57.276 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank/tv
Jan 26, 2026 07:17:35.853 [135457693784888] DEBUG - * Marking media not available in /nas/audiobooks
Jan 26, 2026 07:17:35.982 [135457693784888] DEBUG - * Marking media not available in /nas/movies/Documentaries
Jan 26, 2026 07:17:38.510 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank/kids
Jan 26, 2026 07:17:41.736 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank
Jan 26, 2026 07:17:41.912 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank/movies
Jan 26, 2026 07:17:49.576 [135457693784888] DEBUG - * Marking media not available in /nas/musictank
Jan 26, 2026 07:18:01.705 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank
Jan 26, 2026 07:18:01.851 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank/tv
Jan 26, 2026 09:17:35.883 [135457693784888] DEBUG - * Marking media not available in /nas/audiobooks
Jan 26, 2026 09:22:35.886 [135457693784888] DEBUG - * Marking media not available in /nas/movies/Documentaries
Jan 26, 2026 09:22:37.925 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank/kids
Jan 26, 2026 09:22:40.791 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank
Jan 26, 2026 09:22:40.968 [135457693784888] DEBUG - * Marking media not available in /nas/moviestank/movies
Jan 26, 2026 09:22:48.784 [135457693784888] DEBUG - * Marking media not available in /nas/musictank
Jan 26, 2026 09:22:59.098 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank
Jan 26, 2026 09:22:59.242 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank/tv
Jan 26, 2026 11:22:35.915 [135457693784888] DEBUG - * Marking media not available in /nas/audiobooks
Jan 26, 2026 11:27:35.919 [135457693784888] DEBUG - * Marking media not available in /nas/movies/Documentaries
Jan 26, 2026 11:27:38.929 [135457693784888] DEBUG - * Marking media not available in /nas/tvtank/kids
