Problem with Audio and video in Safari and Firefox while connect to VPN

I have configured Jisti as given in Self-Hosting Guide - Debian/Ubuntu server · Jitsi Meet Handbook
Also configured Turn server.
It’s working fine with All browsers without a VPN.
When I connect to VPN meeting is connected but have a problem with Audio and Video while connect using Safari and Firefox.
Have some error n console as per below

throwing the BridgeChannel.js - "Bridge Channel send: no opened channel" and then shows the unable to connect to the web socket, closed the channel: 1006 and tries again to connect
[Error] WebSocket connection to 'wss://' failed: Unexpected response code: 403

Welcome to the forum!

Sounds like a port issue. Check to see if your VPN is blocking port 10000/UDP.

Thanks for the reply.
It is working with Chrome browser but not with Safari and Firefox.
If a port is blocked in VPN then it should not work in Chrome also.

try disabling websocket for jvb. it may help