Things You'll Need
Instructions
Have your Xbox 360 correctly hooked up to television with HDMI or component cables. Turn your television and Xbox on. Make sure your television is on the correct input. Make sure that your WIndstream DSL Modem is on. If you have a router, make sure that it is on.
Obtain the security key for your wireless network, and write this key down. You will need this key to allow the Xbox 360 to have wireless access to the Internet. If you do not know where to find your wireless network key, you will have to access the security setup of your router. The way to do this varies by model, so check your user's manual to see how. If you don't plan on using the Xbox Wireless Adapter for your Xbox, you may skip this step.
Run a network cable (Ethernet) from your router or directly from the modem to the Xbox 360. Once you have this cable plugged in you will have to access the "My Xbox" tab on your dashboard. Go to the "System Settings" portion of the tab, usually the last portion on the right, and access network settings. For wired setups, go to the "Configure Network" option and make sure both the "IP Settings" and "DNS Settings" are set to automatic.
Create an account on Xbox Live. You will need to either have a credit card or an Xbox Live subscription card. You can purchase Xbox Live cards at your local game retailer. You will be asked to enter information and create a user name called a "Gamer Tag." This is the name that you will be known as in the Xbox Live community.
For wireless setups, you will need to have the Xbox Wireless Adapter plugged into the Xbox. Under the Network Settings, enter the security key that you obtained earlier to allow access to the Internet and Xbox Live.