Nintendo Wi-Fi Connection

Nintendo Wi-Fi Connection, or WFC, is a service from Nintendo that allows the Nintendo Wii, Nintendo DS, Nintendo 3DS and Nintendo Wii U games and applications to connect to the Internet. Super Smash Bros. Brawl is one of the many games that can use the WFC to brawl online with friends or with anyone, as well as send some data to other players. While the network still exists and functions, it is now a legacy connection; it has since been superseded by the Nintendo Network for the Wii U and 3DS.

The Wi-Fi Connection is set to be terminated on May 20th 2014. As a result, it will no longer be possible to play Brawl online.

In Brawl

The Wi-Fi Multiplayer Menu.

The Nintendo Wi-Fi Connection allows players to play against each other online for the first time in the series. A primary point of this is that it allows players to either play with anyone in the world or with registered friends. The former, With Anyone, allows players to either take part in standard free-for-all battles via Basic Brawl and Team Battle, while the latter allows for slightly more customisation

In addition to allowing for online gaming, Brawl also allows players to send replays, custom stages, and snapshots to other players whom they have registered. An applied use of this was the Smash Service, a free service that sent players a replay, a custom stage, and a snapshot each day; these pieces of data came from submissions of players, and were deleted at the end of the day.

In Super Smash Bros. 4

The Nintendo Network also allows Super Smash Bros. 4 to have players fight each other. The With Anyone mode has been split into two modes, For Fun and For Glory.

Error codes

Error Code	Error Text	Cause
10201	Unable to connect to the server. Please try again later.	Generally caused when traffic on the servers is high.
20100	Cannot connect to Internet, but connecting to access point.	Generally caused when router itself is unable to access the internet.
50299	Cannot connect to Internet or to access point.	Generally caused when router cannot connect with the Wii itself.
61010	Cannot connect to access point.	Generally caused when Wii cannot detect router itself.
86420	Disconnected from network during transmission.	Generally caused when router doesn't allow Wii to connect to the internet via a firewall or similar method.
81010	Internet connection has timed out.	Generally caused by unstable network connections or by high traffic on the servers.