From the Wonderland Forums:
Temporary Maintenance
With the increasing number of IGG players, we have offered more servers to make sure our games run smoothly. So we have decided to move all of the servers to a better IDC (Internet Data Center).
This move will take place from approximately 2:00pm February 17th to 6:00am, February 18th EST (GMT-5) during which all IGG games and official websites and forums will be unavailable. After the maintenance, players should soon be enjoying an even better internet environment and more in-game events.
Stay tuned for updates.
Sorry for any inconvenience!
IGG Team