Sudden Issues with NGINX RTMP and Web Presenter 4k

Hello dear BM Forums,
recently I have run into some issues with the Blackmagic Web Presenter 4k and my NGINX RTMP Instance. It has run smoothly for the past 3 years now, but after Upgrading the Server to a new Ubuntu (from 18.04 to 24.04) version we suddenly have run into an issue which we had never before, causing the Web Presenter at many occasions to not connect to the server immediately. Basically the cache builds up, sometimes to 20, another time maybe even to 100 percent before connect completely. We have checked other software too like vMix, OBS and even LiveU and its not possible to recreate that exact result with those, like we get on the Web Presenter.

In my NGINX logs all I can see is this while it tries to connect:

Code: Select all

[01/Aug/2024:09:34:28 +0000] NONE "******" "" "" - 487 256 "" "Blackmagic Web Presenter 4K 3.5" (0s)

Which repeats every 1,2,4,8 and 10 seconds until its properly connect and shows me that it publishing to the server.

Here is also the RTMP configuration:

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        publish_time_fix off;
        play_time_fix off;
        listen 1935;
        push_reconnect 1s;
        idle_streams off;
        interleave on;
        wait_video on;
        access_log /usr/local/nginx/logs/RTMP-access.log;
        ping 15s;
        notify_method get;
        chunk_size 4096;
        max_streams 128;
        application ****** {
                live on;
                meta copy;
                exec_kill_signal term;
                record off;
                allow publish all;
                allow play all;
}

Will all over encoders we do not run into this issue, so I wondered if anyone else has seen or had an issue like that, cause I couldnt really find any information so far.

Would appreciate any input you people would have!
Kind regards,
Sebastian 'Crowned'