I have the same problem with Fred. He wakes up every single morning when the sun rises. If he sees light, he'll bark until his lungs collapse! lol
We tried the "ignore" method but the older he got, the less it started working. Now ignoring him doesn't work at all. I hate to go open the crate when he barks because I think it's my fault that I trained him to do that. My breeder told me to be careful and not let him out everytime he barks because he'll get into habit and believe that everytime he barks, I'll let him out.
And I have!
I would love to hear the solution to this one as well. Sorry I am no help, I'm in the same boat you are!