Things You'll Need
Instructions
Hook the Xbox 360 to the computer using the CAT5 Ethernet cable then turn both devices on.
Connect your computer to a wireless network. By the end of this process, the computer will share this wireless Internet connection with your Xbox 360.
Right-click the wireless Internet icon in the Taskbar. You'll see different options depending on your Windows operating system. The wireless Internet icon resembles a computer with wavy lines next to it.
Open the "Network Connections" window on your computer. Windows 7: Click "Network and Sharing Center" from the menu that appears. This opens a separate window with additional options. Choose "View Network Connections" from the sidebar on the left. Windows Vista: Click "Network and Sharing Center" from the menu that appears. This opens a separate window with additional options. Click the "Manage network connections" text from the sidebar. Windows XP: Select "Network Connections."
Left-click once on the icon representing your computer's wireless Internet connection.
Hold down the CTRL key then left-click once on the local area network icon representing the connection between your computer and console.
Release the CTRL key. Both the icons will be selected.
Right-click the local area network icon then select "Bridge Connections."