I can't play AE on Xbox because it's too laggy. For a couple of years I've accepted this and played exclusively on PC (where my latency is fine), but I'm wanting to get on XBL now.
I'm using a wired connection and the Xbox is plugged directly into the router. I've tried port forwarding and even running in DMZ with all of the router's security turned off. I've tried using a computer monitor instead of my TV in case the TV was laggy. No matter what I do, when I go search for matches it's nearly all yellow bars or lower and performing tight links or reacting to anything is basically impossible.
Could it be my Xbox? I'm using one of the first revision ones with the HDMI port, but it works just fine in every other respect.