HyperV Error Access Denied Unable to establish communication between HyperV and Client

Hyper-V Error  Access Denied Unable to establish communication between Hyper-V and Client

Here is the fix

image

Virtual Machines

Access denied. Unable to establish communication between ‘Hyper-V Server’ and ‘Hyper-V Manager’.

This is puzzling since the workstation has been connected to this particular Hyper-V server many times using other network profiles. The profile we created for the Microsoft folks was seemingly giving us the connection issue.

The fix took a bit of searching to find and needed to be accomplished on the Windows Vista system where the Hyper-V Manager was installed:

  1. Close the Hyper-V Manager
  2. Click Start and type: %windir% [Enter].
    • A Windows Explorer window will open to the Windows directory.
  3. Type: dcomcnfg in the Search Windows field at the top right hand of the Explorer window.
    • You will see the following in your search results:image
  4. Right click on dcomcnfg and Run As Administrator.
    • Authenticate with the local admin credentials if UAC prompts for credentials, or Continue if it does not.
  5. Open the Component Services node, then the Computers node, then right click on My Computer and click on Properties.
  6. Click on the COM Security tab.
    • You will see the following:image
  7. Click the Edit Limits button under Access Permissions.
  8. Enable Remote Accessfor Anonymous Logon
    • Before and after shot:image
  9. Click Apply and OK.
  10. Close the Component Services console and the Windows Explorer window.
  11. Start the Hyper-V Manager and continue through the UAC.

The virtual machines, if any, will show up in the Hyper-V Manager console after that.

Categories: Microsoft Hyper-V R2Bookmark

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