When I have DMZ enabled for my network, all the other computers cant connect to the internet?

My Xbox 360 is under DMZ so I can play with my friends, but my two other computers in my network does not have internet. It says its connected to the network, but I can’t open any web pages.

Rent Dvd افلام مجانا Online Movies DVD4Arab tv shows دى فى دى العربى movies review Dvd 2 Arab movies coming soon افلام مجانية television Dvd 4 Arab movies box office IMDB Movies DVD