Table of Contents


You're installing System Center Virtual Machine Manager Self-Service Portal (VMMSSP) 2.0 server application. You reach the “Connect the VMMSSP server component to the VMMSSP database” wizard page. You supply the address of your stand-alone SQL Server machine. Then you click on the “Get Instances...” button. You expect to see the list of your SQL Server instances. But instead you receive the following error message.

Either the specified server name is not valid, or the server is not reachable.


One of the possible (though unexpectable) reasons for the above error message is that incoming ICMP (Ping) is denied by Windows Firewall on the SQL Server machine.


Enable incoming ICMP on your SQL Server machine. For example, execute the following command.

netsh advfirewall firewall set rule name="File and Printer Sharing (Echo Request - ICMPv4-In)" New enable="Yes"