I have a Windows 8.1 Pro desktop and I'm trying to set up a lab on that machine where a Windows Server 2008R2 VM (VM client 1) hosts an application that a Windows 7 Pro VM (VM client 2) accesses. I have both VM clients installed and running, but I'm having problems connecting them to each other.

I set up each client with an internal virtual switch that connected to my wireless adapter to connect to the internet. I can ping my desktop from the clients, but not client-to-client. Any help or pointers to documentation is appreciated.

Edit - I can ping the Windows 7 VM client from the Windows Server 2008R2 VM and from my desktop. I cannot ping the Windows Server 2008R2 VM from either my desktop or the Windows 7 VM. Maybe something about WS 2008 R2 that is blocking the request?

• Edited by Cinghiale99 Friday, February 20, 2015 8:02 PM

Hi cinghaale,

Have you tried to ping both with the IP address and the name ?
Please try the following links to resolve this issue .Please check this both the server and the windows 7 machine .

Nobody Can Ping My Computer
https://technet.microsoft.com/en-us/library/cc749323%28WS.10%29.aspx?f=255&MSPPError=-2147217396

Best regards

• Edited by MeipoXu Saturday, February 21, 2015 5:32 AM

Hi Cinghale,

Try to run this "ipconfig /flushdns" as an administrator and then have a check .

Best reagrds

• Edited by MeipoXu Saturday, February 21, 2015 7:58 AM

Tried ipconfig /flushdns but it didn't help.

To recap where I am, I can ping between any combination of VMs and my physical box using IP address successfully. Using ping Hostname, I cannot ping the Windows Server 2008R2 VM from either the physical machine or the VMs. The hostname of the Windows Server 2008R2 VM was auto-assigned by the installation.

From the Windows Server 2008R2 VM, when I try to ping itself using hostname from Powershell (as Administrator) it succeeds. However, doing the same thing from Command Prompt (as Administrator) results in 'Ping request could not find host WIN-xxxxxxxxxxx'. I can connect to the Windows Server 2008R2 VM using RDC from the Win7 VM, but not the physical box.

After adding the IP address/hostname to the Hosts file on the Win7 VM, and enabling NetBIOS over TCP/IP, I was finally able to connect to the 2008R2 VM from the Win7 VM. I know this isn't best practice, but since this is an internal lab, it works.

• Edited by Cinghiale99 13 hours 54 minutes ago
• Marked as answer by Cinghiale99 13 hours 54 minutes ago

Tried ipconfig /flushdns but it didn't help.

To recap where I am, I can ping between any combination of VMs and my physical box using IP address successfully. Using ping Hostname, I cannot ping the Windows Server 2008R2 VM from either the physical machine or the VMs. The hostname of the Windows Server 2008R2 VM was auto-assigned by the installation.

From the Windows Server 2008R2 VM, when I try to ping itself using hostname from Powershell (as Administrator) it succeeds. However, doing the same thing from Command Prompt (as Administrator) results in 'Ping request could not find host WIN-xxxxxxxxxxx'. I can connect to the Windows Server 2008R2 VM using RDC from the Win7 VM, but not the physical box.

After adding the IP address/hostname to the Hosts file on the Win7 VM, and enabling NetBIOS over TCP/IP, I was finally able to connect to the 2008R2 VM from the Win7 VM. I know this isn't best practice, but since this is an internal lab, it works.

• Edited by Cinghiale99 Saturday, February 21, 2015 9:53 PM
• Marked as answer by Cinghiale99 Saturday, February 21, 2015 9:53 PM