Nice pic! Which softw did you use?

If the problem is not your software firewall then it's probably your modem/router which generally have internal NAT firewalls. See section 2 & 3 about setting up UPnP, or else if your device doesn't support it well or at all, forward a port for LW: Connection problems? (section 2 & 3, but recheck 1) Check here first! (click on link)