You mean, you changed the Windows firewall or your router's settings? If you are running WinXP or newer, you need to add homegenie.exe to the firewall to expose it to network traffic. If you don't, you can see HG from the local ping port (127.0.0.1), but not from a different computer via it's intranet address (192.168.x.x). If you use port forwarding on your router to send port 80 (or whatever you changed it to in HG) to that intranet address (192.168.x.x), you can then connect to HG from anywhere in the world via your external internet IP.