Hi Kannan, I've hosted the server into Heroku and the client into firebase hosting. Now, If I test on my own network using multiple devices then it's working fine. But on another network, the video becomes black when I test it with a friend. An error shows in the console is like: Uncaught Error: Connection failed. at d.value (index.js:658) at RTCPeerConnection.t._pc.onconnectionstatechange (index.js:116)