While doing Audio Conference or Video Conference, Conference Disconnect Automatically. Why?

Hey guys, i am working on react native (RocketChat + Jitsi) mobile app. i am facing an issue when i start audio conference or video conference from rocket.chat it redirects to jitsi meet once the conference is started then conference call disconnects automatically within 30 to 35 seconds. can anyone help me with this? TIA.

Check https://jitsi.org/qi advanced section - ports, firewall, jvb public/private address.