Always drop the line

I had a problem using jitsi meet. Another user came in and dropped the line. The browser console reported the following error:
app.bundle.min.js?v=3081:2 [conference.js] <e.value>: CONFERENCE FAILED: conference.setup_failed Error: ICE fail
at i.peerconnection.oniceconnectionstatechange (JingleSessionPC.js:479)
at RTCPeerConnection.peerconnection.oniceconnectionstatechange (TraceablePeerConnection.js:252)

Logger.js:125 [JitsiConference.js] <e.sendMessage>: Failed to send a ping request or response.

How to deal with it? Thank you.

Have you checked https://github.com/jitsi/jitsi-meet/blob/master/doc/quick-install.md#advanced-configuration
ICE fail is unable to connect to JVB.
“Failed to send a ping request or response.” not sure where this is coming from … ping is the signaling…

According to your reply, the problem has been solved. Thank you