I am trying your solution but it still hangs with the “Starting connection to server, please wait” text in the browser. I don’t think hard coding the ps1 is the nicest way, but it seems an easy one. How can your solution work without setting up the TURNS server? Do you start/use something from the provided STUN/TURN in
UE_4.21\Engine\Source\ThirdParty\WebRTC\rev.23789\programs\Win64\VS2017\release directory?