Unabe to Disable Adobe ID Sign In for Acrobat Pro DC

I've been trying to create a deployment package for Acrobat Pro DC to be used in a university environment. It's deploying fine, and it's not prompting for a license, but every time you open Acrobat via shortcut or just from opening a pdf, the Creative Cloud sign in page comes up prompting a sign in. The user can just close the window and proceed to use Acrobat, but I'd like to get rid of the sign in page to avoid confusion. I created the installation using the customization wizard and checked "Disable all services". The serial number is in the Personalization Options dialog, but when I click "Grant Offline Exception & Disable Registration", it throws an error: "Offline exception grant process failed. Please refer to oobelib.log in %temp% for details." I can pull those errors if it will help. Thanks!