How to stop lagging on Xbox 360?

well...yeah you could get a wired connection instead of wireless...or if you are wireless, you can just move your xbox closer to the center of your house's internet connection...also make sure nobody is on the internet, because that makes you lag a LOT more... anyway, I have wireless connection, so i do many of these things myself

lagging can be cause by many things

internet connection

live connection

or in many cases it is caused by the host of the game

if you have a wireless connection to live move it closer to your router

OR

buy a cat 5/cat5e cable going straight form the router to the back of the xbox 360

i have a wired connection to live and its never lagging

If possible, use an ethernet cord instead of the wireless connection, if you don't already.

wire your connection with an ethernet