1. How long should I put up with the whining? The pup is a little over 8 weeks and does the usual whine/whimper when I put him in his kennel at night. I have read that you want to make the kennel his "happy place" and do no corrections while in the kennel; however, I have also read that you want to correct the whining right away to avoid issues down the road. I have noticed that if I lay next to his kennel he falls asleep right away, so it might be the separation anxiety.
2. How often should I be using the crate when I am at home before work and after work/before bedtime? (i.e. directly after play time, after going outside, after feeding, etc.) I am gone most of the day due to work, so he sits in his kennel a good portion of the day (my gf and a dog walker have a schedule setup to take him out at lunch time).
Tonight I am going to start using treats and putting him in the kennel for short periods (start at 2-3 min and work up) of time to reinforce the no whining. No whining = him being let out of the kennel. I am also going to get into the practice of taking him outside about 8-10 minutes after every event (sleeping, playing, etc.) to try and prevent him from going in the house.
Any other thoughts and comments would be appreciated!

Thanks,
Justin