Hi Sherryberry,
We are having the exact same experience with our 9 week boxer pup too! She's so good with sleeping in it at night, and hanging out in there with the door closed when we're in the room but the minute we walk out she starts whining and barking. If you find anything that works let me know!!!
Erin
This may sound bad but I think some of it is like letting a baby cry in a crib and the habbit soon stops IF you're doing things right. In other words, has the diaper been changed, baby not sick, fed, etc.
We don't leave our 9 wk old boxer in the crate when we're home except short times like when we're eating. She willingly goes in at night and falls asleep. She does whine when we put her in to go to work, however when I return at lunch, she's often sleeping peacefully or is quiet until she hears me. Yes she's hyper when I go to get her out but she's a puppy. She'll sit on command before I open the door but not hold it for more than a nanosecond.
As noted before, tiring her out also helps greatly.