Nintendo DSi & Nintendo DSi XL - Getting Connected Online - At Home with a High-Speed Internet Connection and Wireless Router - Using AOSS
AirStation One-Touch Secure System (AOSS)
If you have an AOSS-compatible router, use the steps below to connect your Nintendo DSi online:
Turn on your system and access the settings by clicking on the wrench icon.
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Scroll over to the third page, and select "Internet."
Now choose "Connection Settings."

Click on "Advanced Setup"

Choose one of the open connection files:

Now, choose AOSS or W-Fi Protected Setup.

After you click the AOSS button on the system, you need to push the AOSS button on your wireless router. The process may take up to 80 seconds to complete.
