My Wii console is not being detected by my Livebox. I enter the WEP key and the connection test begins normally.
But at the end I get the error message:''Error Code 51331. Unable to connect to the Internet. Check your connection settings from the internet settings "
At the back of your Livebox (inventel) you have 2 button (1 and 2), press on button 1 to sync the 2 hardware piece.
And if your livebox is of the Sagem brand, there's a button below, press it and start over with your Wii.