Docker is doing TCP port publishing, not UDP, which WebRTC requires.

[Cynon42]

I was diagnosing the issues with connection on my laptop with https://webrtc.github.io/samples/src/content/peerconnection/trickle-ice/. I was getting feedback from chatGPT on the issues, and the reponse was that WebRTC media ports are wrong at the Docker level, and Docker is doing TCP port publishing, not UDP, which WebRTC requires.

So this requires modifications to the Dockerfile I believe.

[Cynon42]

The suggested change is to have 0.0.0.0:10000-10050->10000-10050/udp in the docker-compose file. My line was to have:
${MEDIA_PORT_RANGE}:${MEDIA_PORT_RANGE}/udp

just putting udp on the end. But I still can't get the RTC to work.