Manual setup option highlighted on the prompt pop up. So while you can enjoy other online features of the nintendo dsi and nintendo 3ds with wpa.

Nintendo New 2ds Xl Black Turquoise
2ds access point security not supported. Tap manual setup when the prompt asks if you would like help with the internet connection setup. Ensure the access point being used is compatible with your system. Select the corresponding number on the bottom. I got pokemon y today and want to go online but when i try to set up my internet i get a message saying the access points security is not supported by the nintendo ds. Select search for an access point. If your wireless network is not in the list or if no wireless networks are displayed you may find our information on.
For nintendo 3ds on the 3ds a gamefaqs message board topic titled access points security settings arent supported by the ds. Then nintendo ds connections then nintendo wi fi connection settings. Hope this helps you help me dont go to nintendo ds connections. Tap search for an access point. Nintendo ds game cards are only compatible with wep security and are not compatible with wpa security. Those are not used anymore.
The top screen will display the name of the different networks you have set connections up with. Select connection settings. I click on connection 1 then search for an access point but what happens next is it says the access points security settings are not supported by the nitnendo dswhat do i do next. From the nintendo 3ds home menu highlight and select the settings icon. Select internet settings. I do have wireless but we recently upgraded our internet and got a brand new router which is now password protected.
So let me start off by saying im not very tech savvy. Power cycling your wireless router or access point may resolve an issue relating to your network being unresponsive. Select your access point from the list.