Can't host games!!!
I've been having this problem for about 3 weeks now. It started ever since I changed my ISP and even when I use different Wifi networks I still can't host. Everytime I host the game says that my PC is not reachable and I should check if the UDP port 4321 is open in my firewall or router. I've tampered with everything in Windows Firewall trying to 'open' that port and finally I restored the settings to default and downloaded the latest version to see if that will help. The problem still remains and I can't play my Toronto match because my opponent can't host too. Please help ASAP.