Many Nintendo games have online features that you can access with a Wi-Fi Connection ID. However, if you don't connect with Nintendo WFC for a few months, your ID may get deleted. When this happens, you need to create a new ID. If you still have an old ID that doesn't work, you must delete it yourself before generating another one. You might also want to create a new ID if you have trouble connecting to the Internet on your Nintendo system.
Instructions
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1
Tap the "Settings" wrench-shaped icon on the home screen.
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2
Scroll to page three, and then tap "Internet."
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3
Tap "Options," and then tap "Delete WFC Configuration."
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4
Start any Wi-Fi compatible game, and then access the game's online features. When the game attempts to connect to the Internet, the system will create a new WFC ID automatically.