We are getting the same issue as well. We have done a Deactivate of Premiere Pro CS6 and then reactivate with the Admin Account. Still getting the same thing.
The school district has a Creative Cloud subscription for their labs. Encore CS6 will not activate.
This was installed on iMac 27" from the downloaded Suite. We created a .dmg of the suite and pushed it out with serial # in the package. Any help would be appreciated.