Country/State : U.S Michigan
Modem brand/ model: D-Link ADSL2+ Modem Router (DSL-520B)
Router brand & model number: Medialink Wireless-N Broadband Router with Internal Antennas (300 Mbps) - 2.4GHz - 802.11b/g/n - Compatible with Windows 8 / Windows 7 / Windows Vista / Windows XP / Mac OS X / Linux (MWN-WAPR300N)
Wired or wireless: Wired
Things you have tried: opened all ports found here http://support.xbox.com/en-US/xbox-one/networking/network-ports-used-xbox-live I have set my xbox 1 ip to my DMZ host also disabled my firewall.
Is UPnP Enabled? Ive tried on and off
ISP : ATT dsl
My pc and my 360 work just fine and my 360 has open NAT