I can't join any multiplayer games, there is 'gray socket icon' next to my profile pic. Connection settings tells me that my Nat type is 'Unknown'.

I've forwarded ports:
TCP: 80, 443, 13000, 13005, 13200, 14000, 14001, 14008, 14020, 14021, 14022, 14023,14024
UDP: 3075

There is no firewall issue since i uninstalled any firewalls. What else can I do to connect to game?