Question : EMC Not working for Ex2010 RC on 2008R2 Server, WinRM error

Ok I recently setup a test server with 2008 R2 and i installed the Exchange 2010 RC on it succesfully. Howver when I start the EMC and try to open the Microsoft Exchange on Premises link I get this message
Connecting to remote server failed with the following error message : The WinRM client cannot process the request. It cannot determine the content type of the HTTP response from the destination computer. THe content type is absent or invalid. For more information, see the about_Remote_troublshooting Help topic. It was running the command 'Discover-ExchangeServer -UseWIA $true -SuppressError $true'

Ofcourse the help for Ex2010 isnt done yet so that is not much help,.appreciate any feedback on this cuz this kinda stops me dead in my tracks with testing this thing.

Answer : EMC Not working for Ex2010 RC on 2008R2 Server, WinRM error

You have not mentioned your Domain controller, which OS they have and how many DC?
http://support.microsoft.com/kb/970875 Check this article
Large Kerberos tokens cause WinRM requests to fail.