So here's my setup: Visual Studio/Microsoft Test Manager (2012) running on Windows Server 2008 (running on a virtual machine), trying to connect to another VM running Windows 8 (not 8.1). The issue is that in Lab Manager, it says that my Win 8 VM is in a "Ready" status, but when I go to connect, it says "Microsoft Environment Viewer could not connect to the machine..." I have looked for this error and nothing that I can find applies to this error. I get a somewhat generic "how to" doc from MS in most of my searching, but it's not helping me here. The interesting thing about it is that I can connect via the remote desktop option...So I don't know where to go from here. If it's a firewall issue, I don't know what to look for exactly. There may be some detail I've missed, but I don't know what it could be...help?
Thank you!
Aha! I have found the answer, and it is here. Basically, you have to reduce somewhat the security of your environment to allow RDP Clients that aren't the same version as the host OS expects to run.