There could be several reasons why your dog is crying out to you.
1) Perhaps his training schedule has progressed too fast.
Your dog should be happy and enjoying each step of his crate training.
At what point did you start seeing this undesirable behavior?
You might want to go back to that point and proceed more slowly from there.
2) It could be a matter of where the crate is located.
If your crated dog is left alone in another room or if he can’t see you, that could be the reason for him calling out for company. Try moving the crate to a place with the most family activity.
3) Maybe your dog is bored. Having a good selection of toys or bones for your dog will keep him stimulated. It’s always a good idea to keep one or two toys in the dog crate.
4) Your dog could be crying because you’re using the crate as a form of punishment. I can’t stress this enough. Please don’t do this!
This will teach him the crate is a bad place and not his sanctuary.
5) Your little guy might be crying because he doesn’t want to soil his den. The younger your dog is, the less time he can hold his bladder and bowels. You should be keeping a crate training schedule that anticipates when your dog needs to relieve himself.
6) Your dog might not be getting enough exercise. Each breed of dog has different exercise needs. Try increasing the amount of exercise he’s getting.
Each dog has his own personality and needs. Really try to understand what your dog is whining or crying about and adjust accordingly. This will make both you and your little guy much happier.