- On the Hyper-V server, open the Windows
Firewall Allowed Programs screen.
 
On Windows 2008 R2 systems, go to Control Panel > System and Security > Windows Firewall > Allow a program or feature through Windows Firewall.
 - Select Windows Management Instrumentation (WMI).
 - Click Save.
 - Test the Hyper-V connection again.
 
Parent topic: Troubleshooting Microsoft Hyper-V Connections
		