Hmmm... Maybe it’s worth starting from scratch? And practise during the day when you have the time and patience, and when he can ultimately just be released rather than confined.
Even though Remy is still a puppy, this advice from Ian Dunbar applies:
“If someone has taught an adult dog to have apprehensions about the crate, it will probably take at least a few days to overcome them. The process here will be a little different; he’ll need additional time to get over his anxiety that he will be locked and trapped in the crate. While you are trying to convince him of this, don’t lock and trap him in the crate!”
Crates are second only to choke collars as the most misused training equipment forced upon dogs. But when crates are used right, they have significant benefits.
www.whole-dog-journal.com
I still do this with Peggy occasionally, just asking for her to hop in, treat, wait, and then release.
Here’s a good video:
Since Remy is suspicious of treats in the crate (smart boy), I’d say it’s time to reverse your approach—reward once he’s in rather than trying to lure him in with treats. I also think that if he can reach the treats from outside the crate, the crate might be too small for him to really stretch out in there and fully relax.
I know it’s tempting to compare our current dogs to past dogs—I do it all the time—but it’s very possible that your last poodle had a reason to trust the crate from day 1. Or that Remy came to you already suspicious of confinement. Pushing him in is only reinforcing his wariness and he’s likely to start pushing back as he matures.
Since he likes laying outside the crate, another option is to place the crate inside an exercise pen, and use the exercise pen for confinement during the day as Dr. Dunbar recommends. Peggy’s the first puppy I’ve raised with a pen and I’ll never go back! So helpful.