Talk video call not reliable and increasable slow

christianlupus · May 20, 2026, 6:12pm

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The Basics

Nextcloud Server version (e.g., 29.x.x):
- 32.0.9
Operating system and version (e.g., Ubuntu 24.04):
- Archlinux/Docker image
Web server and version (e.g, Apache 2.4.25):
- Apache from community image
Reverse proxy and version _(e.g. nginx 1.27.2)
- Apache v2.4.67
PHP version (e.g, 8.3):
- 8.3.30
Is this the first time you’ve seen this error? (Yes / No):
- No
When did this problem seem to first start?
- I do not know, I never manages to get this resolved in the past.
Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
- Docker community image
Are you using CloudfIare, mod_security, or similar? (Yes / No)
- no

Summary of the issue you are facing:

I wanted to offer Talk-based video conferences for our club. Thus I installed Talk with NC (it was the time of 28 or 29 I think). With 2 persons we tested it and worked so far (with turn server only at that time). With 3-4 persons, it became unusable.

I thus tried to install a Talk High Performance Backend and installed that with Talk. The next meeting came and it was more or less a catastrophe. The more people were in the meeting, the slower they were able to join. A rough estimation was exponential waiting times (first 1 sec, then 2 sec then 4 sec [so far ok], then 10 sec, 20 sec, 1 min, 2 min, …). With 10 people, the last one waited multiple minutes until we can start. Once someone looses connection, we start the time again.

Further we had the very strange situation that the room was somehow split: At some point some people were throen out (Idk why) and tried to rejoin. They entered the room successfully but were only seeing themselves. The people that stayed in the room were alone as well. So, it appeared as if the rejoining somewhat triggered generation of a new and virtual room. We never managed to continue the meeting and had to switch to WhatsApp as a fallback.

I am not sure if this is a combined problem or if I face two issues that manifest similarly (going on my nerves in Talk calls) . On the official instance, I have never seen such an issue.

Steps to replicate it (hint: details matter!):

Create an empty room
Share it by link and distribute the link to different machines (ideally located in different locations of different people)
Join a video call

Log entries

Generally, I have the problem that I cannot locate the problem in time. Thus, I can only provide very fuzzy logs. Further, the instance is still under load (aka productive) and I do not want to filter them out in case I was too restrictive.

Nextcloud

Please provide the log entries from your Nextcloud log that are generated during the time of problem (via the Copy raw option from Administration settings->Logging screen or from your nextcloud.log located in your data directory). Feel free to use a pastebin/gist service if necessary.

gist.github.com

https://gist.github.com/christianlupus/6f996396c996dc389aa6ef139cff4b31

nextcloud.log

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{"reqId":"IUB4l6LmiTPyxogU4hID","level":0,"time":"2026-05-20T17:50:09+02:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","scriptName":"/var/www/html/cron.php","message":"CLI cron call has selected job OCA\\Mail\\BackgroundJob\\OutboxWorkerJob (id: 37, arguments: null)","userAgent":"--","version":"32.0.9.2","occ_command":["/var/www/html/cron.php"],"data":{"app":"cron"}}
{"reqId":"IUB4l6LmiTPyxogU4hID","level":0,"time":"2026-05-20T17:50:09+02:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","scriptName":"/var/www/html/cron.php","message":"Starting job OCA\\Mail\\BackgroundJob\\OutboxWorkerJob (id: 37, arguments: null)","userAgent":"--","version":"32.0.9.2","occ_command":["/var/www/html/cron.php"],"data":{"app":"cron"}}
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{"reqId":"IUB4l6LmiTPyxogU4hID","level":0,"time":"2026-05-20T17:50:09+02:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","scriptName":"/var/www/html/cron.php","message":"CLI cron call has selected job OCA\\Collectives\\BackgroundJob\\ExpirePageTrash (id: 2593, arguments: null)","userAgent":"--","version":"32.0.9.2","occ_command":["/var/www/html/cron.php"],"data":{"app":"cron"}}
{"reqId":"IUB4l6LmiTPyxogU4hID","level":0,"time":"2026-05-20T17:50:09+02:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","scriptName":"/var/www/html/cron.php","message":"Starting job OCA\\Collectives\\BackgroundJob\\ExpirePageTrash (id: 2593, arguments: null)","userAgent":"--","version":"32.0.9.2","occ_command":["/var/www/html/cron.php"],"data":{"app":"cron"}}
{"reqId":"IUB4l6LmiTPyxogU4hID","level":0,"time":"2026-05-20T17:50:09+02:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","scriptName":"/var/www/html/cron.php","message":"Finished job OCA\\Collectives\\BackgroundJob\\ExpirePageTrash (id: 2593, arguments: null) in 0 seconds","userAgent":"--","version":"32.0.9.2","occ_command":["/var/www/html/cron.php"],"data":{"app":"cron"}}

This file has been truncated. show original

Web Browser

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Some logs but not from the "split brain situation"

17:55:37.492 TypeError: can't access property "css", customCSSObj is undefined customcss.js:66:2
17:55:45.758 [ERROR] viewer: Could not register handler 
Object { app: "viewer", uid: "christianwolf", level: 0, error: "The handler is already registered", handler: {…} }
previewUtils-C_mZ-BaB.chunk.mjs:14:381
17:56:00.472 E0520 15:56:00.472999 2158768 gl_graph_runner_internal.cc:260] StartGraph failed: INTERNAL: Service "kGpuService", required by node mediapipe_tasks_vision_image_segmenter_imagesegmentergraph__mediapipe_tasks_core_inferencesubgraph__inferencecalculator__mediapipe_tasks_vision_image_segmenter_imagesegmentergraph__mediapipe_tasks_core_inferencesubgraph__InferenceCalculator, was not provided and cannot be created: emscripten_webgl_create_context() returned error 0; StartRun failed
=== Source Location Trace: === 
third_party/mediapipe/framework/calculator_graph.cc:737
third_party/mediapipe/framework/calculator_graph.cc:768
third_party/mediapipe/framework/calculator_graph.cc:637
research/drishti/app/pursuit/wasm/graph_utils.cc:108 vision_wasm_internal.js:1:89232
17:56:00.473 MediaPipe Tasks initialization failed: Error: INTERNAL: Service "kGpuService", required by node mediapipe_tasks_vision_image_segmenter_imagesegmentergraph__mediapipe_tasks_core_inferencesubgraph__inferencecalculator__mediapipe_tasks_vision_image_segmenter_imagesegmentergraph__mediapipe_tasks_core_inferencesubgraph__InferenceCalculator, was not provided and cannot be created: emscripten_webgl_create_context() returned error 0; StartRun failed; StartGraph failed
=== Source Location Trace: === 
third_party/mediapipe/framework/calculator_graph.cc:737
third_party/mediapipe/framework/calculator_graph.cc:768
third_party/mediapipe/framework/calculator_graph.cc:637
research/drishti/app/pursuit/wasm/graph_utils.cc:108
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    l https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
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    tA https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
talk-main.js:282:9761
17:56:00.483 Uncaught (in promise) TypeError: can't access property "didLoadFail", this._videoStreamBackgroundEffect is null
    isAvailable https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
    setEnabled https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
    _initVideoStreamBackgroundEffect https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
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    zU https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
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    tG https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    promise callback*tq https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    tV https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
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    E https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    C https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    p https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    l https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    run https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    B https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    R https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    P https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    p https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    l https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    run https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    B https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    R https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    P https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    p https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    D https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    E https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    C https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    p https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    D https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    E https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    C https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    p https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    l https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    run https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    B https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    R https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
talk-main.js:282:19564
17:56:01.012 E0520 15:56:01.012999 2158768 gl_graph_runner_internal.cc:260] StartGraph failed: INTERNAL: Service "kGpuService", required by node mediapipe_tasks_vision_image_segmenter_imagesegmentergraph__mediapipe_tasks_core_inferencesubgraph__inferencecalculator__mediapipe_tasks_vision_image_segmenter_imagesegmentergraph__mediapipe_tasks_core_inferencesubgraph__InferenceCalculator, was not provided and cannot be created: emscripten_webgl_create_context() returned error 0; StartRun failed
=== Source Location Trace: === 
third_party/mediapipe/framework/calculator_graph.cc:737
third_party/mediapipe/framework/calculator_graph.cc:768
third_party/mediapipe/framework/calculator_graph.cc:637
research/drishti/app/pursuit/wasm/graph_utils.cc:108 vision_wasm_internal.js:1:89232
17:56:01.013 MediaPipe Tasks initialization failed: Error: INTERNAL: Service "kGpuService", required by node mediapipe_tasks_vision_image_segmenter_imagesegmentergraph__mediapipe_tasks_core_inferencesubgraph__inferencecalculator__mediapipe_tasks_vision_image_segmenter_imagesegmentergraph__mediapipe_tasks_core_inferencesubgraph__InferenceCalculator, was not provided and cannot be created: emscripten_webgl_create_context() returned error 0; StartRun failed; StartGraph failed
=== Source Location Trace: === 
third_party/mediapipe/framework/calculator_graph.cc:737
third_party/mediapipe/framework/calculator_graph.cc:768
third_party/mediapipe/framework/calculator_graph.cc:637
research/drishti/app/pursuit/wasm/graph_utils.cc:108
    O4 https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    setGraph https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    m https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    l https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    promise callback*l https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    l https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    o https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    O2 https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    jG https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    jG https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    createFromOptions https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    _initMediaPipe https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
    zz https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
    _initVideoStreamBackgroundEffect https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
    zU https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
    zq https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
    zW https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
    z$ https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
    Vg https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:291
    VN https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:291
    VO https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:291
    DD https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    joinCall https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    ws https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    dispatch https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    dispatch https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    joinCall https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:291
    handleClick https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:291
    tT https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    tA https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    ap https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    w https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:79
    tT https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    tA https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    i https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    on https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    os https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    og https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    E https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    C https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    p https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    l https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    run https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    B https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    R https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    P https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    p https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    l https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    run https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    B https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    R https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    P https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    p https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    D https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    E https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    C https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    p https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    D https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    E https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    C https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    p https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    D https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    E https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    C https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    p https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
talk-main.js:282:9761
17:56:07.970 Error getting video stream: AbortError: Starting videoinput failed talk-main.js:291:552620
17:56:09.539 E0520 15:56:09.540000 2158768 gl_graph_runner_internal.cc:260] StartGraph failed: INTERNAL: Service "kGpuService", required by node mediapipe_tasks_vision_image_segmenter_imagesegmentergraph__mediapipe_tasks_core_inferencesubgraph__inferencecalculator__mediapipe_tasks_vision_image_segmenter_imagesegmentergraph__mediapipe_tasks_core_inferencesubgraph__InferenceCalculator, was not provided and cannot be created: emscripten_webgl_create_context() returned error 0; StartRun failed
=== Source Location Trace: === 
third_party/mediapipe/framework/calculator_graph.cc:737
third_party/mediapipe/framework/calculator_graph.cc:768
third_party/mediapipe/framework/calculator_graph.cc:637
research/drishti/app/pursuit/wasm/graph_utils.cc:108 vision_wasm_internal.js:1:89232
17:56:09.540 MediaPipe Tasks initialization failed: Error: INTERNAL: Service "kGpuService", required by node mediapipe_tasks_vision_image_segmenter_imagesegmentergraph__mediapipe_tasks_core_inferencesubgraph__inferencecalculator__mediapipe_tasks_vision_image_segmenter_imagesegmentergraph__mediapipe_tasks_core_inferencesubgraph__InferenceCalculator, was not provided and cannot be created: emscripten_webgl_create_context() returned error 0; StartRun failed; StartGraph failed
=== Source Location Trace: === 
third_party/mediapipe/framework/calculator_graph.cc:737
third_party/mediapipe/framework/calculator_graph.cc:768
third_party/mediapipe/framework/calculator_graph.cc:637
research/drishti/app/pursuit/wasm/graph_utils.cc:108
    O4 https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    setGraph https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    m https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    l https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    promise callback*l https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    l https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    o https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    O2 https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    jG https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    jG https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    createFromOptions https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    _initMediaPipe https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
    zz https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
    _initVideoStreamBackgroundEffect https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
    zU https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
    w https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:291
    subscribeToDevices https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:291
    mounted https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:291
    ng https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    tT https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    tA https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    __weh https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    tH https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    tG https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    promise callback*tq https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    tV https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    scheduler https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    <anonymous> https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    trigger https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    M https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    ei https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    set https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    setInCall https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    wr https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    commit https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    commit https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    _withCommit https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    commit https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    commit https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    f https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    i https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    emit https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    emit https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    _trigger https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    joinCall https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    promise callback*AK.Base.prototype.joinCall/< https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    joinCall https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    joinCall https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    VR https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:291
    m https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:291
    emit https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    startLocalVideo https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
talk-main.js:282:9761
17:56:28.653 TypeError: can't access property "videoWidth", this.$refs.video is null
    updateVideoAspectRatio https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:291
    0 https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:291
    tT https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    tA https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    i https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    on https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    os https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    og https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    E https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    C https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    p https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    D https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    E https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    C https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
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    E https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
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    B https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    R https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    P https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    p https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    A https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    T https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    C https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    p https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    A https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    I https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    p https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    A https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    T https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    C https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    p https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    l https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    run https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    runIfDirty https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    tT https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    tG https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    promise callback*tq https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    tV https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    scheduler https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    <anonymous> https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    trigger https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    M https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    ei https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    set https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:7
    set https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:291
    _handleChannelMessage https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:291
    emit https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    z$/< https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:282
    emit https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    MZ https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    emit https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:9
    onmessage https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    _observeDataChannel https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
    handleDataChannelAdded https://cloud.tsc-vfl.de/custom_apps/spreed/js/talk-main.js?v=b00d0557-19:101
talk-main.js:9:2615
18:00:27.284 TypeError: can't access property "css", customCSSObj is undefined customcss.js:66:2

Web server / Reverse Proxy

The output of your Apache/nginx/system log in /var/log/access_log:

gist.github.com

https://gist.github.com/christianlupus/db4d06c1ff706e8b341ab78276a0bfad

access_log

cloud.tsc-vfl.de 84.147.28.135 - - [17/May/2026:00:00:44 +0200] "PROPFIND /remote.php/dav/files/christianwolf/ HTTP/1.1" 207 253 "-" "Mozilla/5.0 (Linux) mirall/4.0.6daily (Nextcloud, arch-6.18.7-arch1-1 ClientArchitecture: x86_64 OsArchitecture: x86_64)"
cloud.tsc-vfl.de 84.147.28.135 - - [17/May/2026:00:01:12 +0200] "GET /ocs/v2.php/apps/user_status/api/v1/user_status?format=json HTTP/1.1" 200 156 "-" "Mozilla/5.0 (Linux) mirall/4.0.6daily (Nextcloud, arch-6.18.7-arch1-1 ClientArchitecture: x86_64 OsArchitecture: x86_64)"
cloud.tsc-vfl.de 84.147.28.135 - - [17/May/2026:00:01:46 +0200] "PROPFIND /remote.php/dav/files/christianwolf/ HTTP/1.1" 207 253 "-" "Mozilla/5.0 (Linux) mirall/4.0.6daily (Nextcloud, arch-6.18.7-arch1-1 ClientArchitecture: x86_64 OsArchitecture: x86_64)"
cloud.tsc-vfl.de 84.147.28.135 - - [17/May/2026:00:02:12 +0200] "GET /ocs/v2.php/apps/user_status/api/v1/user_status?format=json HTTP/1.1" 200 156 "-" "Mozilla/5.0 (Linux) mirall/4.0.6daily (Nextcloud, arch-6.18.7-arch1-1 ClientArchitecture: x86_64 OsArchitecture: x86_64)"
cloud.tsc-vfl.de 84.147.28.135 - - [17/May/2026:00:02:48 +0200] "PROPFIND /remote.php/dav/files/christianwolf/ HTTP/1.1" 207 253 "-" "Mozilla/5.0 (Linux) mirall/4.0.6daily (Nextcloud, arch-6.18.7-arch1-1 ClientArchitecture: x86_64 OsArchitecture: x86_64)"
cloud.tsc-vfl.de 84.147.28.135 - - [17/May/2026:00:03:12 +0200] "GET /ocs/v2.php/apps/user_status/api/v1/user_status?format=json HTTP/1.1" 200 156 "-" "Mozilla/5.0 (Linux) mirall/4.0.6daily (Nextcloud, arch-6.18.7-arch1-1 ClientArchitecture: x86_64 OsArchitecture: x86_64)"
cloud.tsc-vfl.de 84.147.28.135 - - [17/May/2026:00:03:50 +0200] "PROPFIND /remote.php/dav/files/christianwolf/ HTTP/1.1" 207 253 "-" "Mozilla/5.0 (Linux) mirall/4.0.6daily (Nextcloud, arch-6.18.7-arch1-1 ClientArchitecture: x86_64 OsArchitecture: x86_64)"
cloud.tsc-vfl.de 84.147.28.135 - - [17/May/2026:00:04:12 +0200] "GET /ocs/v2.php/apps/user_status/api/v1/user_status?format=json HTTP/1.1" 200 156 "-" "Mozilla/5.0 (Linux) mirall/4.0.6daily (Nextcloud, arch-6.18.7-arch1-1 ClientArchitecture: x86_64 OsArchitecture: x86_64)"
cloud.tsc-vfl.de 84.147.28.135 - - [17/May/2026:00:04:52 +0200] "PROPFIND /remote.php/dav/files/christianwolf/ HTTP/1.1" 207 253 "-" "Mozilla/5.0 (Linux) mirall/4.0.6daily (Nextcloud, arch-6.18.7-arch1-1 ClientArchitecture: x86_64 OsArchitecture: x86_64)"
cloud.tsc-vfl.de 84.147.28.135 - - [17/May/2026:00:05:12 +0200] "GET /ocs/v2.php/apps/user_status/api/v1/user_status?format=json HTTP/1.1" 200 156 "-" "Mozilla/5.0 (Linux) mirall/4.0.6daily (Nextcloud, arch-6.18.7-arch1-1 ClientArchitecture: x86_64 OsArchitecture: x86_64)"

This file has been truncated. show original

In the error_log no issues were mentioned.

Configuration

Nextcloud

The output of occ config:list system or similar is best, but, if not possible, the contents of your config.php file from /path/to/nextcloud is fine (make sure to remove any identifiable information!):

{
    "system": {
        "memcache.local": "\\OC\\Memcache\\APCu",
        "apps_paths": [
            {
                "path": "\/var\/www\/html\/apps",
                "url": "\/apps",
                "writable": false
            },
            {
                "path": "\/var\/www\/html\/custom_apps",
                "url": "\/custom_apps",
                "writable": true
            }
        ],
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "password": "***REMOVED SENSITIVE VALUE***",
            "port": 6379
        },
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "cloud.tsc-vfl.de"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "mysql",
        "version": "32.0.9.2",
        "overwrite.cli.url": "https:\/\/cloud.tsc-vfl.de",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "app_install_overwrite": [
            "twofactor_admin",
            "files_texteditor",
            "impersonate",
            "files_antivirus",
            "jsloader",
            "groupfolders"
        ],
        "maintenance": false,
        "maintenance_window_start": 2,
        "mail_smtpmode": "smtp",
        "mail_smtpsecure": "tls",
        "mail_sendmailmode": "smtp",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpauth": 1,
        "mail_smtpauthtype": "PLAIN",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "587",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "default_phone_region": "DE",
        "loglevel": 0,
        "logtimezone": "Europe\/Berlin",
        "skeletondirectory": "",
        "templatedirectory": "",
        "theme": "",
        "activity_use_cached_mountpoints": true,
        "default_language": "de",
        "default_locale": "de"
    }
}

Apps

The output of occ app:list (if possible).

Enabled:
  - activity: 5.0.0
  - app_api: 32.0.0
  - appointments: 2.7.3
  - bruteforcesettings: 5.0.0
  - calendar: 6.4.0
  - calendar_resource_management: 0.12.1
  - call_summary_bot: 3.4.0
  - checksum: 2.0.3
  - circles: 32.0.0
  - cloud_federation_api: 1.16.0
  - collectives: 4.4.0
  - comments: 1.22.0
  - contacts: 8.3.10
  - contactsinteraction: 1.13.1
  - dav: 1.34.2
  - external: 7.0.1
  - federatedfilesharing: 1.22.0
  - federation: 1.22.0
  - files: 2.4.0
  - files_antivirus: 6.2.0
  - files_downloadlimit: 5.0.0
  - files_external: 1.24.1
  - files_fulltextsearch: 32.0.2
  - files_linkeditor: 1.1.24
  - files_pdfviewer: 5.0.0
  - files_reminders: 1.5.0
  - files_sharing: 1.24.1
  - files_texteditor: 2.15.1
  - files_trashbin: 1.22.0
  - files_versions: 1.25.0
  - forms: 5.2.7
  - fulltextsearch: 32.0.0
  - fulltextsearch_elasticsearch: 32.0.2
  - groupfolders: 20.1.13
  - groupquota: 0.2.4
  - guests: 4.7.2
  - impersonate: 3.0.1
  - integration_giphy: 2.2.1
  - integration_google: 4.3.1
  - integration_openai: 3.10.1
  - integration_replicate: 4.2.0
  - logreader: 5.0.0
  - lookup_server_connector: 1.20.0
  - mail: 5.8.0
  - nextcloud_announcements: 4.0.0
  - notes: 5.0.0
  - notifications: 5.0.0
  - oauth2: 1.20.0
  - password_policy: 4.0.0
  - polls: 9.1.2
  - privacy: 4.0.0
  - profile: 1.1.0
  - provisioning_api: 1.22.0
  - quota_warning: 1.23.0
  - recommendations: 5.0.0
  - related_resources: 3.0.0
  - richdocuments: 9.0.6
  - serverinfo: 4.0.0
  - settings: 1.15.1
  - sharebymail: 1.22.0
  - snowflakestheme: 1.1.5
  - spreed: 22.0.12
  - support: 4.0.0
  - survey_client: 4.0.0
  - suspicious_login: 10.0.0
  - systemtags: 1.22.0
  - tables: 1.0.8
  - tasks: 0.17.1
  - text: 6.0.2
  - theming: 2.7.0
  - twofactor_backupcodes: 1.21.0
  - twofactor_email: 3.0.10
  - twofactor_nextcloud_notification: 6.0.0
  - twofactor_totp: 14.0.0
  - twofactor_webauthn: 2.6.0
  - updatenotification: 1.22.0
  - user_status: 1.12.0
  - user_usage_report: 3.0.0
  - viewer: 5.0.0
  - webhook_listeners: 1.3.0
  - workflowengine: 2.14.0
Disabled:
  - admin_audit: 1.22.0
  - apporder: 0.15.0 (installed 0.15.0)
  - dashboard: 7.12.0 (installed 7.4.0)
  - deck: 1.16.4 (installed 1.16.4)
  - drawio: 4.1.4 (installed 4.1.4)
  - encryption: 2.20.0
  - files_downloadactivity: 1.18.1 (installed 1.18.1)
  - files_fulltextsearch_tesseract: 32.0.0 (installed 32.0.0)
  - files_markdown: 2.4.1 (installed 2.4.1)
  - files_mindmap: 0.0.34 (installed 0.0.33)
  - files_rightclick: 0.15.1 (installed 1.6.0)
  - firstrunwizard: 5.0.0 (installed 2.13.0)
  - jsloader: 2.0.0 (installed 2.0.0)
  - metadata: 0.23.0 (installed 0.23.0)
  - oidc_login: 3.3.1 (installed 3.3.1)
  - photos: 5.0.0 (installed 1.6.0)
  - sociallogin: 6.4.3 (installed 6.4.3)
  - timetracker: 0.0.86 (installed 0.0.86)
  - transfer: 0.7.2 (installed 0.7.2)
  - twofactor_u2f: 6.3.1
  - user_ldap: 1.23.0
  - weather_status: 1.12.0 (installed 1.4.0)

Tips for increasing the likelihood of a response

Use the preformatted text formatting option in the editor for all log entries and configuration output.
If screenshots are useful, feel free to include them.
- If possible, also include key error output in text form so it can be searched for.
Try to edit log output only minimally (if at all) so that it can be ran through analyzers / formatters by those trying to help you.

Additional information

The HPBE server runs on a separate machine. This machine is not high power to be honest but the load seems acceptable: 2CPUs with an average load of <1 (when we managed to get 7 deviced into the call).

The HPBE is configured in the NC settings (as well as STUN / TURN):

As it might be the simplest to read the config in a common location, I redacted the tokens and uploaded to GitHub - christianlupus-tmp/hpbe-config-redacted · GitHub.

wwe · May 21, 2026, 7:04am

Christian, I have not direct advice just my own experience. a conference with 5-6 people works well without HPB. The problem in this case is less server-side but more client side as every participant must maintain streams from and to everybody else. with HPB the picture changes and every person has only one stream from/to HPB server which becomes responsible for proper media handling.

I was hosting conferences with 4-5 participant on my home-server with 100MBit/s internet link without issues. I didn’t monitor resource usage at this time but IMO it was acceptable as I didn’t bother to check.

As you say join time increased with every participant I would assume HPB was not working and join time was affected by the client establishing connections with all previously joined participants. I also would expect more CPU load once high-perfomance-b-talk is in use.

I would recommend you start troubleshooting in the browser look at about:webrtc - you can see which “candidates” exist and which are in use - this way you can pretty easy see if media flows through the server or peer to peer look at Nextcloud TURN is not healthy, talk calls will not connect off of local network and Nextcloud Talk High Performance Backend (HPB) - Multi-Domain Setup Guide for references.

christianlupus · May 21, 2026, 1:06pm

May I ask if with or without HPBE?

In firefox? Or in another browser?

Honestly, I feel overwhelmed when opening that on firefox. It logs hundreds of lines and I do not really know where to look. There are so many errors flying around that I cannot have a good chance to guess what is actually expected and what not.

I have tried to open a session with 4 devices simultaneously. On my main Firefox, I see on about:webrtc this overall connection statistics:

(Sorry for the German localization.) I see 1 outgoing stream with audio&video and 2 incoming video streams and 1 incoming audio&video stream. Is this as intended with HPBE?

Once I kill one device at a time, the each one of the receiving channels/connections stops (time freezes). So, I seem to have 1 uploading connection and n-1 incoming connections (with n participants in the room). This is how I expect the HPBE to work. Otherwise it would be n-1 incoming and n-1 outgoing connections, right?

I suspect, I will have to set up some debugging env to log the various moving parts (nats, janus, coturn, hpbe) on the server side. I will need more information on how to get verbose/debugging logs on the client (and how to read them).

If anyone can give me good advice on how to debug and test this, I am gladly willing to test it out.