Hello, I have a 7 month old puppy, going to be 8 months old in a little over a week. He just recently started peeing in his kennel while I have been gone. I left him in there for four hours the other day while I tried to get some shopping done and he peed. Then I left him in there for two hours today while I tried to get some errands done and he peed. He has never peed in his kennel before until recently. He has been left in there a little longer than that in the past and I never had an issues. Has anybody else had this problem? I would appreciate the help.