[How] Computer behind Firewall

[TheZephyr]

Hello. I am installing the BurningCrusade-enUS.exe and it was going really slow, but then a minute later it said 'Computer Behind Firewall'. So, of course i close it then turn of Windows Firewall but then another minute later, it said again 'Computer Behind Firewall' which is making it even slower. How do i fix this problem?

- Thank you.

[MentaL]

[TheZephyr]

Does anybody know how to make it go faster? it's on 66% and has 3 hours to go.