Xbox nat settings strict

[antiv6]

ok after having issues with my at&t 2wire router i was recently "upgraded" to business level internet with a netopia router and now xbox is set to strict for nat settings and i cant connect to anything. Any ideas i have no clue what to do. So far i did this and its still strict.
Netopia® Support Technote -- NAT Default Host

my router is
3347-02
Netopia 3347-02 Wireless router + 4-port switch ( 3347-02-10ENT ) - PCUniverse.com

thanks in advance

 

[Kingofterrors]

You need to forward ports i believe 88 and 3074. Or see if your router has a DMZ setting .

Port instructions here
Description of Firewall Ports for Xbox LIVE and Games for Windows LIVE