We will be performing scheduled maintenance beginning on Tuesday, September 17th, 7:00 AM (PDT) and we expect the service to be available again at approximately 8:00 AM (PDT). During this time the game will be unavailable for play.
An additional authentication maintenance will take place on Wednesday, September 18th starting at 11:00 AM (PDT) until 12:00 PM (PDT). During this time, players may not be able to login but players already in-game should be unaffected.
Please follow @BlizzardCS on Twitter for further updates.