Easiest Online Access
The easiest way to get online is to let the Wii do all the work. The Wii has built-in sensors to locate the wireless signal from your router, if it has wireless capabilities. If your router is not wireless, consider replacing it with a wireless model. Wireless routers can be purchased at electronics stores or online. A wide number of models priced between $30 and $70 let router replacement be an affordable option. If you prefer not to replace your router, Nintendo has created to alternatives for the Wii to receive wireless signals.
Wii LAN Adapter
If your router isn't wireless but you do have a router with multiple computers on the connection or the ports to use multiple connections, you have a Local Area Network or LAN set up. With a LAN network, you can plug the Wii LAN Adapter into one of the available router ports. If you have broadband strictly for use with the Wii and don't need to run connections to other computers, the LAN adapter can be plugged into your broadband modem. The adapter sends the wireless signals directly to your Wii.
Wi-Fi USB Connector
Nintendo makes a Wi-Fi USB connector that will plug into a computer using a broadband Internet connection. Computers must be using the Windows XP or Windows Vista operating systems for this connector to work. Once hooked up, the USB port connector will send the wireless Internet signals to the Wii.
Tips
Wireless Internet signals are typically able to move through the rooms of a home. If the home is large and the Wii is on a different floor or in a room farthest from the origination point of the wireless signal, the Wii might have difficulty receiving signals. Test the Wii closer to the signal to be sure all is working properly, then try moving it to the final location or choosing a new location.