We will be performing scheduled maintenance beginning on Tuesday, April 23rd, 5:00 AM (PDT) and we expect the service to be available again at approximately 6:00 AM (PDT). During this time the game will be unavailable for play.
An additional authentication maintenance will take place starting at 7:00 AM (PDT) until 9:00 AM (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.