Fightcade connecting problems, pls help!

I just installed this and i cannot connect to anyone. Roms work fine and i can play single player, but when i challenge anyone it does a small load and nothing happens. I don’t have a router so i don’t need to port forward. GGPO and Supercade worked fine, idk whats the problem with this one. Please help!

Belongs here @d3v , @Valaris

so i found out that direct connecting works, but regular doesnt …