Dark_of_Niwa
I got that error code the day it came out.
Now it either works (15% of the time) or I get disconnected (85%).
Those should be the servers acting up, don't think about it too much
BUT just so you know it's not in your end:
Make sure your close to the Router (at least that you have good reception)
That your internet is working (router will still flash like it's all good and your Wii will connect like it's all good, but there is NO internet, remember router connection and internet connection 2 different things)
That you have the right key and what not
basically, check with something else, connect to the internet, via the Wii, if it can do that, then it's the Nintendo server