Re: Online Gaming
Persaonlly, I have owned a few routers in my time. I had the Linksys WRG router (similar to your's). The linksys routers are not that good.
Have you made you have port forwarding. I know that NAT does not effect your speed, but affects the no of connections you can have (less connections during match making - but to this point it can limit you connects and prodomitatly, my expierence you tend to get alot of internation connection rather than local).
Do this, when you have got everything on and running and have the xbox set up. Take the power cable out and plug it back in and let me know if that helps.
Like one of the presvious posts - -upgrade the firmware. I would go for this. But I know it can be pain doing it as everytime I done it I kept getting a fail message,