I can connect to other peoples games.
BUT
People can NOT connect to the games I create

I've looked into my firewall, settings, etc. Even my router. Nothing has worked.
I've even tried turning my firewall off completly (for a short time to see if people could join) but, still nothing.
Now I've moved and I'm at college running off of their network. But the same problem persists. Any ideas?
EDIT when I port forwarded, I opened 6112-6119 TCP and UDP