Rhonin the wizard on 22 March 2009
It's called Wi-fi Error code 20102. Here is what it says:
Error Code: 20102
This error code indicates some type of unauthorized activity has occured in an online feature of a Nintendo Wi-Fi Connection game.
What to do:
Please call 1-800-895-1672 in the USA or Canada for more information.
Also, as I have heard that it is permanent and you can't play any games online while you have this. There is a workaround, it involves formating the consoles memory.
