I connected the Nintendo DS Lite correctly and successfully to my router. Well, after that I go ingame... For 30 seconds I stay connected and the WiFi signal is full (That tells me the DS with green and all bars full). But suddenly the DS tells me the WiFi signal is dead (red, no bars) and I can't do anything more with the WiFi connection. It doesn't find the router anymore. It's not a problem with my router because I can connect to it with my notebook perfectly. Does anyone had the same problem and how to solve it?