NAT Strict and port UDP 3544 problem

do you run the latest Firmware fo your Router?

Greetings AnOnyMous 16777!

If you haven't already, then please go ahead and start a new thread with a detailed description of you situation along with any error code, or message and any troubleshooting steps you have tried so far.

For those who are trying to help and to have an even better understanding of your situation, please read:

forums.xbox.com/.../1621667.aspx and post back in full detail (the bits in bold)

Thanks in advance!

Im having the same problem. But my ISP is Verizon dsl. Using westell 7500 as the gateway modem. Both ip addresses match also. Any suggestions? I have tried everything I know of

Directly from an ethernet port on the wall wired to your router?

Yes

Does the WAN/Internet IP (NOT the LAN IP!) listed in your router's web interface match the IP reported by
http://www.tracemyip.org ?

Hmm, let me clarify, listed where exactly?

So, how do you get Internet? Directly from an ethernet port on the wall wired to your router? Is this part of shared Internet such as for a dorm or apartment complex? Are you very sure you understood and correctly answered my question: Does the WAN/Internet
IP (NOT the LAN IP!) listed in your router's web interface match the IP reported by
http://www.tracemyip.org ?

I ask these because not having a modem and your problems are both consistent with your Xbox One being behind at least 2 layers of NAT (double NAT).