I'm running Windows Small Business Server 2011 and attempting to connect remotely from a windows 7 machine. When I login to the "Remote Web Access" I am able to see a list of my workstations and click connect. Well when I click connect everything goes as normal until I'm prompted for my credentials. The security dialog box opens up but it is missing the Username & Password fields that I normally see on all my other computers. I've included a screenshot of what this looks like. No other machines are having this problem and my server has been added as a trusted CA.
The blanked out RD Gateway server is a fqdn remote.myserver.com and remote computer is the name of the workstation I'm attempting to connect to.