We have a Westell 7550 DSL from AT&T. My son's X-Box 360 just gave him the message that his NAT closed. Many months ago, I successfully "opened" the NAT but didn't keep the instructions since I didn't know it would close again. Anyone know how I'm supposed to do this?
You have to enter the routers settings and there is a setting in there that will allow you to change the Nat setting. It may not be called the Nat setting so you may have to look for something similar yo opening ports.