Same issue here on enterprise network, however I have the same problem when I copy the files locally. This post
https://forums.adobe.com/message/5581988
has more details that match my issue exactly, and it sounds very like the OP's issue.. No resolution from Adobe offered. Have lost a lot of time on this (over 100 licenses purchased and as yet cannot be used) lots of money wasted so far. Maybe should ask for a refund.