Ok, I have an R4DS I just got a new DS(red top/ Black bottom) cause my old one broke. Only now when I try to play online I get an error 20109 which a Nintendo rep said means an unauthorized device. Everything used to work fine. Did they change something in the newest generation of DS lites? Oddly Mario Kart DS works just fine online which would make you think it is the Rom files but the same files worked on my old DS Lite(Polar White) just fine.I also tried eraseing my WI-FI ID but that didnt help. I am going to try and get my brothers DS since its older and try on there. Does anyone have any suggestions? or better yet solutions.