Nintendo Support: How to Change the Wireless Security (Password) Settings
Tech Specs - Nintendo 3DS Wiki Guide - IGN
SOLVED: My Nintendo 3DS Won't Connect to WiFi - Connectify
How to connect to wifi with a nintendo DS (lite) - YouTube
Trying to connect my 3DS to the internet : r/3DS
Why can't I connect to my WPA2 internet? | GBAtemp.net - The Independent Video Game Community
Got a hacked Japanese 3ds that only list WEP as security option for wifi. Is this the firmware limiting the wifi setup because Nintendo list WPA2 for 3ds : r/3DS