We both a ticket from the ticket machine. We both the Classic Tour Ticket which includes: Grand Tour of the Palace with audio guide ( 44 rooms), Privy Garden, Maze & Labyrinth, Orangery Garden, Gloriette.
We both the ticket at 10:50 and we were scheduled to enter in the palace at 12:50 (it is written on the ticket). So we had 2+ hours waiting time. Fortunately there are the other places included in the Classic Ticket that can be visited before: Privy Garden, Maze & Labyrinth, Orangery Garden, Gloriette.