This little guy has an awful lot of issues to deal with right now and i have a few questions, if you don't mind?
When he is kenelled is he with the other dogs or on his own?
Are the other dogs in the house together with him at any time while you are not in the same room as the dogs?
Are the other dogs together all the time?
Do you know if he was a house dog or used to kennels?
Is your kennel an outside kennel or is it a crate in the house?