can't see each other in lobby but can connect to adhoc server

well like in tittle

was trying to play pc to pc with my cousin (he lives in other town) with no luck

options we did try

1 - direct connection (i have external IP im not behind router or any device any1 is able to connect to my pc from anywhere without any additional software)
2 - direct connection via port forwarding (my cousin have router so he disabled all his firewals antiviruses and router protection AND DID PORT FORWARDING)
3 - hamachi < joining to hamachi host ip
4 - tunngle < joining to tungel host ip


we forwarded all ports for hamachi tungel

game we tested are tekken 6 and street fighter alpha 3 max

we are able to see our IP's when we join adhoc server or when we leave it (the stand alone version of adhoc server) but we cant see each other in lobby

no matter if its built in ppsspp adhoc or that stand alone version effect is always the same

like we joined same server but other room? wtf?

it happens either if im the host either if he is hosting

like nothing from tutorials helped us in any case even reading trough any problem on this forum did not help

so if any 1 have any idea what could be wrong it would be cool