Just spent a few days without Internet access. Normally, the router at the house is unsecured, but my brother-in-law bought a new one recently.
Normally you would use a key (or up to 4 keys) to secure the router. Buffalo Airstation routers now feature AOSS (AirStation One-Touch Secure Setup). In 60 seconds you are connected to the router. Even Japanese Wii have AOSS capability. Since Buffalo are best known for HDD in Australia, there’s not much support for their networking technology.
Fortunately I found Client Manager 3 software that works on non-Buffalo adapters. Loaded this, pressed the button and I was go! http://www.buffalotech.com/technology/buffalo-advantage/client-manager-3/