WebRTC connection doesn't go through

Using RN 0.61.4, react-native-webrtc 1.75.2

I’ve done the setup required from here https://github.com/react-native-webrtc/react-native-webrtc/blob/master/Documentation/iOSInstallation.md

this.peer = new RTCPeerConnection(configuration);

The configuration is a bunch of iceServers from our stun/turn server - live and working for browser videocalls

I’m trying to make a call between browser and ios simulator. It does not give out any errors or warnings but in the server logs the request is simply no there. The browser request is there but not the one that should’ve been sent by the simulator

Any ideas?