I need some advice from people who have crate-trained their dogs!
We adopted a puppy from the humane society 10 days ago. He's a catahoula/beagle mix, and he's just about 12 weeks old now. He is a GREAT dog so far, he's very well-behaved for the most part. Since we've had him home he's only had two accidents in the house (and one was our fault for not reading his signs), he isn't really into chewing things that aren't toys, and he did awesome off-leash on a weekend camping trip.
The one thing we're having trouble with is barking in the crate. I feel like we've followed all the typical advice out there for crate training. The crate is the right size (big enough for him to stand and turn and change position, but not big enough for him to walk around), we have a bed and blanket in it, we got him used to it slowly by placing toys and treats in it, we put some of our worn clothing items in there for him to smell, etc. He isn't afraid of the crate - he will take his toys in there himself or go in there for a nap with the door open when we're home. But, when we put him in the crate at night or when we have to leave, he whines and then starts yipping/barking. We have not left him alone in the house in the crate for more than 2 hours at a time yet, and once he did OK, the other time (which was for 1 hour) he yipped almost the entire time.
The reason we know this and the reason it is such a problem is we live an an apartment. It's a house split into two apartments and we're on the first floor. Our upstairs neighbor knows we adopted a puppy (we checked with our landlord and her before adopting) and we asked her to text us if he is barking a lot when we are gone. She told us that the one time he yipped almost non-stop for the full hour.
When we put him in at night and he yips, we discourage the yipping, and he will eventually stop and go to sleep and be fine for 5 or 6 hours before waking up to go out. But it's hard to figure out how to stop the yipping when we're gone since we're not there to discourage the behavior!
Anyone have advice on something different to try? Or want to tell me it's still early and this is just a phase?
ETA: Attaching a picture of Rye and his puppy dog eyes.