Instructions
Power on your Nintendo DSi, and select "System Settings," represented by a wrench icon. Go to the third page and choose "Internet," the fourth option. Select "Connection Settings" on the next screen.
Click "None" next to "Connection 1," "Connection 2" or "Connection 3." Next, select "Search for Access Point." The Nintendo DSi will display every wireless network it locates. Scan the list and click on the name of your wireless network.
Enter the WEP security code and double-check it before confirming the code. If the code is wrong, the Nintendo DSi won't connect to the wireless network. The hand-held device will connect to the wireless router in your home or at a hotspot.
Return to the main menu of your Nintendo DSi. Tap the Nintendo DSi Shop icon. Download the Nintendo DSi Browser for free. Some Nintendo DSi units come with the application pre-installed.
Select the Nintendo DSi Browser icon on the main menu of the Nintendo DSi. Surf the Internet with the touch screen and stylus.