 problems hosting xbox live mathces
i play COD 4 and i cant host matches i rang the xbox customer line they gave me some IP addresses to put into my modem config and i spoke to the company that made my modem they told me how to enter it it worked and i was able to host the next time i turned my xbox on it wouldnt let me host anymore i tried going back and adding the IP addresses again and it doesnt work anymore i have naked dsl internet and my modem is a belkin wired voip IAD my nat is enabled someone please help me!!!!!!! | 
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