In the Nintendo 3DS Friends app, I'm trying to register a new friend.
In the Friends app, I click the orange "Add friend" icon, then in the dialog that appears with the choices "Local" and "Internet", I tap "Internet".
At this point, I get the error: "You cannot use Internet registration because you are not online."
The status bar on the top screen of the 3DS does show "Internet", indicating that I am online. I can successfully use the 3DS to do other online things such as browse the e-shop.
How can I get this working?
Best Answer
In your router's security settings, you need to forward UDP ports 9103 and 50000-60000 to your 3DS.
Source: http://www.nintendo.com/consumer/wfc/en_na/ds/results.jsp?error_code=001-0502&system=3DS