AB Server locked?

Just got punted from the game. Launch pad options says AB server is locked and all othetr servers are up. What's going on and when will we be let back in game? There wasn't even a server announcement or anything saying it was going to be coming down, I just got punted to character select where it said server offline, and that was it. Tried exiting game and logging back in same deal. The scheduled maintenance isn't supposed to start for 6 more hours. What's going on? Have tried several times to get back in and character select isn't showing all my characters and keeps saying server is offline but launch pad says "locked" which is it, what is going on and when will we be able to get back in?

Had to wait 15 minutes from intial punting but game seems back up now. I wonder what happened?