Log Level
Disable verbose logging. It is not needed 99% of the time and can impede problem analysis.
Settings → System_Name → General + Show Advanced
EDIT: Then restart Plex Media Server. A restart is required for a lower log level to take effect.
Allowed Networks
Jul 31, 2023 16:42:09.396 [2920739696] ERROR - [Req#1f] Error parsing allowedNetworks entry ' 82.13.142.111': Invalid argument [system:22]
Jul 31, 2023 16:42:09.396 [2920739696] ERROR - [Req#1f] Error parsing allowedNetworks entry ' 192.168.1.1': Invalid argument [system:22]
You’ve a syntax error in allowed networks.
Be careful allowing remote sites access without authorization. Clients allowed without authorization have full administrative rights in Plex Media Server. They can access/change any PMS setting and delete media from your system.
Remote Streaming
Jul 31, 2023 22:07:20.823 [2903864176] DEBUG - [Req#335d/Transcode] MDE: Hallelujah: Leonard Cohen, a Journey, a Song (2022): no remuxable profile found, so video stream will be transcoded
Jul 31, 2023 22:07:20.823 [2903864176] DEBUG - [Req#335d/Transcode] MDE: Cannot direct stream video stream due to profile or setting limitations
Jul 31, 2023 22:07:20.824 [2903864176] DEBUG - [Req#335d/Transcode] Clipped max bitrate to 553Kbps based on client-requested limit
Jul 31, 2023 22:07:20.824 [2903864176] DEBUG - [Req#335d/Transcode] MDE: Hallelujah: Leonard Cohen, a Journey, a Song (2022): Audio Direct Streaming is disabled, so video's audio stream will be transcoded
Jul 31, 2023 22:07:20.824 [2903864176] DEBUG - [Req#335d/Transcode] MDE: Cannot direct stream audio stream due to profile or setting limitations
Jul 31, 2023 22:07:20.826 [2903864176] DEBUG - [Req#335d/Transcode] Streaming Resource: Reached Decision id=14286 codes=(General=2000,Neither direct play nor conversion is available. Direct Play=3001,Not enough bandwidth for direct play of this item. Required bandwidth is 5282kbps and only 720kbps is available. Transcode=4002,Not enough CPU for conversion of this item.)
Verify the bandwidth settings on the Plex client. Most Plex clients default to 2000 kbps for remote streaming.
Verify the bandwidth settings in Plex Media Server.
Settings → Remote Access + Show Advanced.
Internet upload speed and Limit remote stream bitrate.
That message appears when (a) video transcoding is disabled or (b) the CPU is not strong enough to transcode the video.
Review Settings → Transcoder → Disable video stream transcoding.