I have a Server 2012 test server running all the RDS roles.. I am trying to do a RDweb 301 redirect but when I add /RDWeb/Pages/en-US/Default.aspx I get the following error:

Error: Unable to display RD Web Access

An unexpected error has occurred that is preventing this page from being displayed correctly.

Viewing this page in Internet Explorer with the Enhanced Security Configuration enabled can cause such an error.

Please try loading this page without the Enhanced Security Configuration enabled. If this error continues to be displayed, please contact your administrator.