Plutonium

I'll try it, thanks for reply

all set to default

Yes, he is on my same network, i disabled firewall on both pc's, still not working, i tried with lan ip, lan ip with port, public and local ip, also public and local ip with port

Already tried it, still not working
I already tested opening port 4976, using radmin, Disable and enabled UPnP, nothing works

I started a zombie custom game to play with my brother but he cant join me, UPnP is enabled and we both are friends, when he double click my user the game says "Joining game session" but he never connects