Intermittent "Media Could Not Be Loaded" Error in Chrome (Transcoding Failure - HAR shows 404)

[Todd_McCartney]

I am experiencing an intermittent issue where video playback fails in the Chrome browser (on multiple PCs) with the error message: "The media could not be loaded, either because the server or network failed or because the format is not supported."

The failure is inconsistent; sometimes the stream starts fine, and other times it fails immediately.

1. Hardware Transcoder is Working: The Intel Quick Sync Video (QSV) hardware transcoder is configured and functioning correctly for the server.
2. Browser Specific: The stream plays reliably in the Opera browser, confirming the core transcoding stream is viable and the issue is not network-wide.
3. HAR File Analysis Pinpoints Server Issue: I captured and analyzed HAR files for both a working and a failing attempt:

• Working Attempt: The browser successfully received a 200 OK status for the master playlist (master.m3u8) and subsequent video segments.
• Failing Attempt: The browser requested a video segment (e.g., stream.ts) and received a 404 Not Found status code from the Channels DVR server (192.168.2.4:8089).

"The failing playback occurred around 2025-11-06T22:13:50Z (UTC), and the subsequent working playback occurred around 2025-11-06T22:16:21Z (UTC). Please look for a 404 Not Found error related to a transcoder failure for channel 2293 at the earlier time."

This strongly suggests a transcoding resource or buffering failure on the server side, where the transcoder failed to generate or locate the required segment in time for the client.

Action Taken:

I have submitted diaganostic logs from my DVR server moments after a failed attempt: ba16a528-3282-4b37-bc1d-8552e1ff8360

I also have har files if those would help. Thanks!

[charlescihon]

I have been seeing these same issues specifically with the web player, where transcoding occurs. Will try transcoding inLAN client via forced setting in playback. I think these issues are about a week old and seem unrelated to any setting changes I have made. Issue occurs regadless of HEVC transcode on or off, or regardless of "segmenter" advanced setting

[bnhf]

Same here, and it only happens with the web player in Chrome. It does not appear to be limited to hardware transcoding -- as I use software transcoding. I've been using VLC as a workaround for now:

I wasted a bunch of time thinking this was related to some development I was doing.

[MikeBear]

I just noticed this same issue on my Chrome. It works fine on Firefox though.

[bnhf]

Another report of this issue:

"Media could not be loaded, either becuase the server or Network Failed or Because the Format is not Supported"

Hello! I just started getting this error on all of my feed in channels. Doesn't matter which provider they come from. What is most odd about is that the Remux is actively running. Any help would be great! Windows 11 PC, Running up to date copy of channels. [Screenshot 2025-11-12 204141]