I second that. My first instinct was that there must be something else going on. If you are confident in your abilities and follow the methods of clinicians like Clinton Anderson, then you should fully understand pressure and release which is the key to teaching a horse to tie.
I would start with a dentist. A good one will also look to adjust the neck and jaw to remove any discomfort. Only after that you should begin in-hand work. Pull lightly to ask him forward, etc. If he's in pain now, he will have developed this issue as a habit as well and it will take you longer than normal to reverse it.
Don't use a rope halter to tie, ever. If you've done your in-hand work properly, either a flat nylon or leather halter will be fine.
You may also want to consider getting a Blocker Tie Ring. Google it. You absolutely do NOT want to create a situation where your horse can break away from what he's tied to. Instead, you want to show him that he will remain tied even after throwing a fit and that he will survive being tied.
Also, on this forum, expect that everyone else will believe they know more than you and suggesting that you're capable will land you in hot water. ;)