We do not need to know if a “stand down” order was ever given.
We only need to know if Obama, The President, gave the cross border authority. That’s it: Did he or didn’t he? He obviously did not.
There were forces in Tripoli that were ready to go and on their way to board a C-130. There were also forces on Sigonella ready to go as well. All in all there were enough forces geared up and ready to go, and be in Benghazi within three hours of the start of the attack, to take the whole city of Benghazi.