How to Stop Dog From Barking in Outdoor Kennel?

I put the dog in her outside kennel in the morning. Around 4-5pm she starts barking and does not stop until I get home which is about 6pm. I understand she is probably getting bored. I put 6 or 7 toys in with her, plenty of water. Just not sure what else to do.

How Do I Stop My Dog From Barking and Peeing When He Is in His Kennel?

He is a two year old housebroken dog with no health problems. I don’t know how to make the barking and peeing stop. My other dog has no problems being in her kennel.
Barking starts as soon as he is put in the kennel. He is in there for only 3 hours and he pees. When I am home, he holds it longer than that.