Nintendo DSi Blue Console "authentication error belkin router" Questions

error code 051099-1 Hi there, This seems to be a problem with your wireless router. Check to make sure you put in the proper WEP/WPA Security Code. If you aren't sure what I'm talking about... Step 1:

...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 ...