Non-Reproducible
This issue was not reproducible when tested by the development team. Issues may be given this status when they cannot be reproduced or are no longer relevant in a development version of the software, but a specific fix was not installed to address the issue. The issue's Additional Information section may contain further explanation.
Additional Information
No Public Explanation
Workaround
Apparently even though I have admin rights, I have to open the Server Manager with Admin rights. (in some cases but not all) To do this I click Start, then right-click on the Server Manager application and choose Run as Administrator. When I do this it works.