Nintendo DSi Blue Console "belkin authentication error" Questions

...Belkin one, locate a small hole at the back of the modem/router and insert a pin to press the switch inside it. Keep the switch pressed for about 20-30 seconds after which the modem/router will ...

...Belkin 4 port/wireless router and there are two other computers currently functioning fine. The PS is wired to the router, and I can see the light "on" on the router. When I ran the online startup ...