This was my assumption. It wouldn't make much sense for it to be anything else, especially since the coolant level is good.as the is no water in the tranny, I can guarantee it is not dripping water. That is condensation from your A/C system. There is a drain on each side of your tranny, the evaporator draws moisture out of the air in the cabin... thus cooling air.
Hopefully we here from some of the other vets on here that have dealt with troubleshooting the transmission failsafe system.