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When you try to connect to a virtual machine by using the Virtual Machine Connection tool from the Windows Server 2008 Hyper-V Microsoft Management Console (MMC) snap-in, you receive the following error message:
However, you are not prompted for credentials when you receive this error message.
This issue occurs if the Use default credentials automatically (no prompt) check box is selected.
To resolve this issue, follow these steps:
In the Hyper-V MMC snap-in, right-click the Hyper-V server that hosts the virtual machine to which you want to connect, and then click Hyper-V Settings.
Click User Credentials, click to clear the Use default credentials automatically (no prompt) check box, and then click Apply.
Click Delete Saved Credentials, click Delete, and then click OK. If there are no saved credentials, the Delete button will be dimmed.
Note Repeat steps 1 through 3 for each Hyper-V server for which you want to be prompted for credentials when you connect to a virtual machine.