We had that problem with our pups! They have a part of the kitchen sectioned off for them by a puppy gate. Once they started barking, whining and whatever else they could do to make a noise we went down and let them out but we totally ignored them for a good ten minutes in an atempt to show them even if we did let them out it was no benefit as we were only going to acknowledge them when we decided, it seems to be working as they havent made a sound other than banging each other against the walls playing for the last few mornings.