Today Capcom will be shutting down the multiplayer servers for the Wii version of Monster Hunter Tri. Players still interested in playing the game will have to do so as mainly a single player experience. Alternatively you can also pick up the 3DS or Wii U version of Monster Hunter 3 Ultimate and play online with those (though the 3DS version’s online component requires a Wii U and an app called Monster Hunter 3 Ultimate Packet Relay Tools For Nintendo 3DS to act as a sort of server/host).