Some common 360 network Q's
Direct Connection
This is the fastest, easiest way to connect to Xbox Live. Choose a direct connection if:
* You want the easiest wayto set up and play on Xbox Live.
* You don't want to share your connection with your PC (or other device).
Router Connection
This is the best way to share your Internet service with your PC. Choose a router connection if:
* You want to share your high-speed Internet connection with your PC (or other device).
* Your cable or DSL modem supports an Ethernet connection.
* You want to be able to play on Xbox Live whether your PC is on or off.
Windows ICS Connection
This shared connection is best only if you have a USB or internal PCI modem. Choose a Windows ICS connection if:
* You want to share your high-speed Internet connection with your PC (or other device).
* Your cable or DSL modem uses a USB (not Ethernet) connection, or it is an internal PCI modem.
* You don't mind turning on your PC before playing games on Xbox Live.
Set Up Your Home Network
See the Guide to Home Networking to help you make a plan and purchase the right equipment for your home.
http://www.xbox.com/en-US/support/connecttolive/xbox/connectionmethods/intro.htm