I'm pulling my hair out! I have been working on how to figure out open the port forwarding through Airport Extreme. I am running on Mac OS X 10.5 via ethernet and it is wired. I am not quite sure what to do to put the correct position using Airport Utility to setup DHCP for downloading the update on World of Warcraft. I spoke with WOW and they told me to contact Apple about Airport Extreme situation. U know, TCP and UDP. I have no idea what I do with which numbers I should put? Public and Private TCP and UDP. I am confused with the system preference as well. I know it is different. Anyway, I am downloading and it says my computer appears to be behind a firewall. I have been looking at www.portforwarding.com It doesn't get me anywhere! Even I tried to do the mirror patches. Am I missing something here? Setting up router or fixing the firewall first? They tell me that I need to open 3724 and 6112. Then open 6881-6999. Can someone show me by sending me visual step-by-step? It'd be great if I could follow with visual set-up assistance. Many thanks.