Problem in Cross flight simulator session

[I_SNAK]

Kia Ora all
Last week and today i try to fly a session with some friends.
If we all use FSX, P3D 3 or 4, FSX Steam there is no problem. We can fly seeing each other.
If one of us uses X-Plane 11.41 all the players can see it but he can't see other. This is not a problem relate with mesh or airport height because if all players can see me ...... but i can't see them i think that is a problem related with some ports to open.
I open port 6112 on my router and on the windows firewall as my friend does too but the problem still remain.
We forget someting in the setting of JFS?
Thank You
KIA ORA
Andrea

[biblbrox]

Hello,

have you turn on AI Planes at X-Plane? If not, you cannot see any other plane at JoinFS multiplayer.