#1 - Feb. 12, 2016, 9:17 p.m.
Blizzard Post
Hey all,
We'll be doing some maintenance to gears and levers behind the scenes. Players will be unable to authenticate and access the realm list while this is happening. Expected downtime is about 1 hour beginning at 1:30 PST.

Players already logged in should only be disconnected from Battle.net but should still be able to play. Thanks for your patience everyone!