1.Log on to the orange livebox as admin.
2.leave the firewall setting on medium.
3.Select 'security' and chose the 'wireless connection option' Change the channel from 1 to 11 or if it already on 11 then change it to 1.
4.Under 'configuration' select 'advanced' then select 'wireless'. Change the security to the WEP only option. once you apply this change all pc's etc connected to you network will be disconnected.
5.Wait for the router to restart and go into pairing mode (about 90 secs).
6.Restart your PC, log back in and check to make sure you have an internet connection.
7. On your Wii go into the internet option (via settings) and select one of the 3 connections.
8.Clear all the settings for that connection.
9.Go through the steps for creation a new set up i.e search for SSID. At type of security select WEP and put in the WEP key (26 characters).
10.Optain IP and DNS addresses automatically and save the settings
Run the test and you should connect within 30 secs.