Open Software Center on your computer and install the Adobe Creative Cloud application.
Once the install is complete, a red Adobe Creative Cloud icon will be on your desktop.
Open that application, select "Sign in with an Enterprise ID" and enter your TTI email address. You will be redirected to the common TTI single sign-on screen.
Once signed in, you may select Acrobat DC or any of the other applications to install from the list under the Apps tab.