Starting February 7, Ubisoft will start moving the hosting of its online services from a third-party data center to a new facility. The following games will not be playable during the transition: Assassin's Creed (Mac), Tom Clancy's H.A.W.X. 2 (PC), Might & Magic : Heroes VI (PC), Splinter Cell Conviction (Mac), The Settlers 7: Paths to a Kingdom (PC), and The Settlers (Mac). Visit this page
for the list of game that will not be impacted during the transition and will remain fully playable.