I Need Help Connecting to Xbox Live?

my router is set up correctly and stuff and so is my adpater but my xbox does not detect it or something.my friends told me that the light on the router is suppost to be red or green my is flashing green what does this mean.please help i have be trying to connect since yesterday.please help me i really want to get on xbox live with my friends.

Suggestion:

Get a marker.

Tagged as: xBox