Find Sessions / Join Sessions by IP address

Sorry, i’m stuck at this exact point.
I want to do a connection by direct IP (i dont want to use steam neither other sistem, i NEED ip direct connection)

I have this on the game instance blueprint. I had it previously on the game mode, but cant tell if this makes a difference or not.

Host session
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Join Session ( Via LAN)

Join by direct IP connection

joinbyip.png

It works on LAN, but not on Internet. Before you ask, yes i have done port forwarding.

My DefaultEngine.ini :

[OnlineSubsystem]
DefaultPlatformService=Null

I would thank any help, this is making me going crazy.