Camera and microphone doesn't work in Internet

Hello, I’ve installed jitsi in my ubuntu 18.4 server. It’s run good but camera and microphone doesn’t work for internet, if devices are in same LAN it runs perfect. What can is my problem? In jvb.log there isn’t any error and the console log of my browser is this:

I hope our help

Thank you

Thank you for your answer

Now I can’t access by mobile. If I access at room with devices are same vlan it’s running perfect. But I access at room with one device with WLAN and other devide with data mobile, the mobile device doesn’t access.

By default, only two clients will try a peer to peer connection. If one client is inside and one is outside, that doesn’t seem to work. If you go into the mobile client advanced settings, and disable PtP, does it work better?

Hello, I have disabled PtP option.