WebRtc (webrtcbin) not working with current Chrome of Firefox on local Network

Hi everyone,
we are trying to stream life camera vid from AGX to a browser on a local network (wifi). Chrome does not connect when it does not have a public network address. This seems to be caused by an ICE/mDNS problem:

Is there some way around this? (Besides changing Chrome Configuration, because this is hardly an option)

We don’t have a working solution for this usecase. Would need other users to share experience.

FYR, we have a package enabling hardware encoding: