Really, in order to play via the Internet, the host must have an open port 7777? My friend just does not see my session, and neither do I see him.
From the point of view of logic, I am doing everything correctly, the session is created successfully and the level with “?Listen” opens. I am using the online subsystem default = Null.
I think the problem is in the closed port. I checked this through various online services and it says everywhere that the port is closed (during the session and not). I remember when I tested multiplayer with the same friend a long time ago and we were able to connect normally without opening any ports, I don’t understand how. And there are a lot of games where the listen system is used and you don’t need to open anything. So it is possible?