Moving this discussion to the Deployment for Creative Cloud Team, Enterprise, & CS forum.
Joe with Creative Cloud Enterprise membership there are a number of options available to obtain updates. The installation files on the Prodesigntools site though is not one of those options.
I would recommend you begin at Adobe Enterprise Learn & Support which discusses the different local deployment options that you can implement. The community in this forum may also have additional suggestions.
You are also welcome to open a ticket, within the Admin Console, if you would like direct assistance with deploying Creative Cloud updates and applications on your local network or to offline locations.