Hi there, new user, but I can't get my Wifi connection to work.

I've managed to download the software (eventually) and completed the registration thingy that connects your Wii to the computer, but it won't connect. If I try the test connection it shows up on the computer as one user being online then disappears and it comes up with a 51240 error on the Wii.

Can anyone help please? It's doing my nut in now!:cry2: