Why won't toilet flush after replacing wax ring?
Recheck the passage way that runs from the bowl to the horn. There must be an object lodge in there since the toilet flushed properly prior to the wax ring being replaced. Don't remove the toilet from the closet flange just yet. Insert a toilet auger and work the handle. It should advance through the toilet with little effort as it is being turned. If you encounter resistance reverse the auger while withdrawing it a short distance at the same time. Than continue pushing it forward feeling for any blockage. Withdraw the auger and flush to verify proper operation. If, after using the auger and flushing, the water doesn't flush pull the toilet, drain any standing water in the tank and bowl and lay it on its side on a plastic sheet. Examine the horn opening with a flashlight. If necessary insert a bent coat hanger into the opening and probe for foreign objects.