What to Do:
From the HOME menu, tap on the System Settings Icon.
Tap "Internet Settings."
Tap "Connection Settings."
Tap the "New Connection" option.
Tap "Manual Setup" when the prompt asks if you would like help with the Internet connection setup.
Tap "Search for an Access Point."
Once the search has completed, locate and tap the name of your wireless access point.
When prompted, use the keyboard that appears on the lower screen to enter your security key and tap "OK" when finished. If you are not prompted to enter a security key, skip to the next step.
If you do not know your wireless security key, please contact your router manufacturer or refer to the product manual included with the router for information on how to log into your router and locate these details.
Tap "OK" to save your settings.
Tap "OK" again to begin a connection test.
Was the connection test successful?
The connection test was successful - Your system is now connected online.
The connection test was not successful If you still require further assistance please contact Nintendo Customer Service