Localhost is your local server, hense the "local" Try allowing the ports: 80, 3360, and your server and mus ports through a firewall on your computer; Windows Firewall, Virus Protection Firewall. I had this exact problem. Also for more assistance on Port Forwarding and making sure its done...
I was port forward my retro and being lazy but kinda smart.. i used Simple Port Forwarding. I forwarded all these ports: 80, 3306, 30000, 30001 to my IPv4 Address.
And I ran the port check. Apache shows up port forwarded but the others don't.. Here's a few screenshots:
Please help...