This is always one of the toughest parts of a hounds homecoming. These are dogs who have not been alone and the life he is now living is WAY different than what he is use to. I suggest you do some serious awaytraining and for right now dont give him affection all the time. I had one pup I had to ignore 15 min before I left and when I came home. I also had to not give hime affection when he came to me. This is what I had to do for pretty much his life since he was a very needy hound (hey he had 2 other greys and he still would have issues when I left). Im sure your boy is not to this extreeme and will calm down when he settles into his new home routine. T have always done awaytraing with my fosters and I truely believe in it. Good luck