2Wire: XboX bug all the time

Sorry for the late reply!

[quote user="Cartoonite"]I finally got a working network cable running up through the walls into the room and connected the 360 directly to the 2wire modem.[/quote]Did you actually have your Xbox 360 directly connected to the 2wire gateway, or did you have
any networking device connected in between this path?

It would be great if you are able to find out the model number of your 2wire gateway.

Could you try, once more, to directly connect your Xbox 360 with an Eternet Cable to the 2wire gateway, but this time, make sure you disconnect your second Xbox 360, along with the Xbox One, from your network.

Disable UPnP and reboot your 2wire gateway.

Enable UPnP and reboot your 2wire gateway.

This procedure will refresh the map table.

If it's possible, are you able to try and connect your console on a different network (friends house), to verify if this is exclusively tied to your network, or not.

Keep us posted!

I have tried several different methods that I found online and finally found one that works. I have att 2wire an xbox one and 360 and now both run with an open nat at the same time and have not disconnected or given me nay problems at all for 3 days now.
the following link is a step by step guide to show you how.

thestandardoutput.com/.../running-a-linksys-wrt54gl-with-dd-wrt-behind-an-att-uverse-2wire-gateway

Is this the first time you've connected to live and what is the exact model of 2wire router?

[quote user="Irixion"]If I may ask, why do you have an E1200 if the Bell device is a modem/router combo? Do you have the 2wire Modem/Router set to just modem?[/quote]

The 2wire device is operating as a modem/router. The E1200 is (was) operating as a wireless bridge. That is, the E1200 provided a wireless link to the 2wire device for several devices that only support wired connections. It was the only way to get wired devices
upstairs connected to the 2wire without running cables through the house or walls.

The connectivity path at that time was:

360 -> RJ45 cable -> E1200 -> wireless link -> 2wire -> RJ11 cable -> Internet

Now that I have a cable running up from downstairs to a switch in the next room, the E1200 is operating as a switch. The 360 is connected to one of the LAN ports and there is a cable running from a different LAN port to the switch in the next room.

The desired connectivity path is 360 -> E1200 -> 2wire using all wired links but the cable that was supposed to make that possible isn't working so for now the extra hop is required.

I am reasonably certain that the 2wire device is configured properly since all devices on the network are able to access the internet as expected. Even when the problem 360 is disconnected from Live, connectivity to the internet is maintained. Also, this
networking setup worked flawlessly for a year or so and there were no changes when my issues first started.

I am 100% sure. I have never had a 2Wire modem connect to xbox live. I know some things that are not on that list work fine. 2Wires in my experience do not work.