Network preventing keyframe decoding

Hi,

I’m experiencing an issue where my network is preventing the keyframes for my webrtc/mediasoup livestream from being decoded. Using the same device and browser, if I switch networks the livestream plays as expected.

Normally you would think it’s a firewall or port issue, but the ICE lite connection is successful and the client is receiving video data and keyframe requests, the single point of contention seems to be the decoding of the keyframes.

What network specific issue could be causing this to happen? Does anyone have suggestions to debug this further?