Hi and thanks for the question. Intel AMT Switchbox is not currently public (you are working with one of my prototypes). We will be releasing Switchbox again with the Intel AMT DTK in a few weeks on the public web site.
The latest version of Switchbox should fix the problem you described. Also, the new version of Controller allows you to create a root certificate without having to go to Director anymore, if you don't have the latest version let me know.
Thanks,
Ylian (Intel AMT Blog)
Ylian Saint-Hilaire
Senior Lead Developer
Intel Corporation