Jitsi meet and nginx proxy

Hi!

First sorry for my english: i’m French :smile:

I’m trying to install jitsi-meet on a Virtual Machine on my LAN. The jitsi-meet server is behind an nginx proxy (VM too).

Call and vidéos works good on LAN (firefox and android app).
Call and vidéos works good on mobile network PLUS VPN (VPN server is on my LAN).
Call and vidéos doesn’t work on mobile network without VPN.

Can someone help me please ?

Best regards,