My basenji started crying in her crate any where from 3:30 - 5:00 in the morning. She is 6 1/2 years old and we have had her for all but the first year. We have always crated her at bedtime and whenever we are not home. She has always been excellent, going in on command and never making any noise during the night. She stays quiet until we decide its time to come out in the morning. Now she cries and whines and is even peeing on her blanket. She gets a long walk every night. I know she can hold her pee for many hours, because she does this if it's raining or snowing. Not sure of any change in her routine that could cause her to be crying.
Vet told us to stay consistent, which I think we have.
Thanks for any help that might be out there.