I don't understand why or how. But I have a DSi and a 3DS, I'm trying to set up a WEP Wifi Connection because that's what the internet in my house has. When I go on the DS to enter the security key, I am told that it is incorrect or invalid. I know for sure that the key is not wrong, but I'm not sure what to do in order to fix this, I've tried entering it multiple times making very aware of caps lock or possible spacing issues. Help?