我本机是一台域控制器Windows Server 2008 R2 Data Center，安装有 Hyper-V 2.0，今天安装了 System Center Virtual Machine Manager 2008 R2，当我添加本机作为Host时出错：

Error (2923)
A malformed response was received while trying to contact the VMM agent on BrooksPCNB.Lucifer.com.
 (Unspecified error (0x80004005))

Recommended Action
1) Ensure the VMM agent is installed and that the VMMAgent service is running.
2) If the VMMAgent service is running, restart the service, and then verify that WS-Management is installed correctly and that the WinRM service is running.
3) Check the manufacturers’ Web sites to ensure that you have the latest drivers for your network adapters and other devices.

我仔细检查了下，软硬件均符合系统需求，VMM agent、WinRM均已安装且服务已启动。第三条有线与无线网络都试了还是同样的错误，如果有朋友遇到过类似错误，请指教。