I have two Xbox 360s on my network and I'm only able to get one of then to be open NAT. I have the PACE 5168 modem/router which everything is going through at present.. I also have MTS TV and I understand that must use the PACE. I have a DIR-655 router which sounds like it is able to handle 2 Xbox's at once from what I gather but I'm not sure if there is a way to use it instead of the PACE.
Is there a way to get them both to be open at the same time?
One thing you could do is connect box 360s to the DIR-655 then the DIR-655 to the Pace 5168. Everything should work seemlessly. Generally speaking if everything that is not a MTS TV box connects through the DIR-655 you won't have issues, the issues arise when you start trying to have devices on both the DIR-655 and Pace 5168 trying to talk to each other. It is also not officially supported to have the MTS TV boxes connected to anything other than the MTS supplied router.
It should just work. The 2wire will function like a DSL/Cable modem. The key is *everything* that needs to talk between each other, 360, computers, etc, be hooked through the DIR 655. Things start getting more complex if you want devices to talk across the 2wire and DIR 655 for anything other than Internet access.
Thanks CoryB. It worked perfectly. All the devices into the DIR-655 then the DIR into the Pace.TV is still through the Pace and all works fine. Also tested the 2 360s and both are open NAT now and can be online in the same game at the same time without issues. Now my son is happy, he can game with me.
Going to be a touch more techincal here: the reason this setup works is that most consumer level routers include a built in DHCP server that places all the devices connecting to in in a private network. If you start chaining routers/switches and other network gear together you need to take extra steps to ensure only one DHCP server is running and that all the sub-networks are within the same private network. It can be done but it moves beyond simply plugging in a router and having it work with minimal configuration.