Windows 10: Several Windows Server Core Hyper-V Virtual Machines cannot ping their default gateway

We have a Windows Server Core 2019 Hyper-V server serving four Hyper-V Clients two Windows Server 2019 GUI and two Windows Server Core 2019 Servers. The Hyper-V Server has full network connectivity and is a member of a domain. All 4 Virtual Machines are pingable from the Hyper-V host and each VM can ping the Hyper-V Server. They are on a 10.18.21.0-10.18.21.255 network with a gateway 10.18.21.1. The Hyper-V host and one VM has full network connectivity however the other three VMs cannot ping their default gateway 10-.18.21.1 or reach the rest of the network. These three VMs are not reachab

:)

 

Hyper-V Virtual Machine not recognised

The folder where your VM is do you see a .vhd file?

Here is a great article step by step on how to import VM into hyper-v.

https://social.technet.microsoft.com/wiki/conte...

 

Hyper V Import Virtual Machine

There is separate default folders for Virtual Machines and Virtual Hard Disks

C:\ProgramData\Microsoft\Windows\Hyper-V

This folder contains all settings for each Virtual machines.

Have you changed that folder?

C:\Users\Public\Documents\Hyper-V\Virtual Hard Disks

This folder contains only virtual disks. On your case it's changed to E:\HyperV\...

When you want import VM you need to search it from that first location.

You can check this location from Hyper-V settings.

If you can't import existing VM's you can create 3 new Virtual Machines.

When creating those select option Use existing Virtual Disk and point disks from E:\HyperV\...

 

Importing Virtual PC -> Hyper V

Thank you. I followed the instructions below, and when I go to hit the action menu to install Integration services, of course, there is no such option under the Action Menu. The instructions seem so simple but I'm still missing something...

Step 4: Install or upgrade integration services

Hyper-V includes a software package for supported guest operating systems that improves integration between the physical computer and the virtual machine. This package is referred to as integration services. To learn more, see Integration
Services.

This step can't be automated or done within a Windows PowerShell session.

To install integration services

• 
  Open Hyper-V Manager. From the Server Manager Tools menu, click Hyper-V Manager.
  
• 
  Connect to the virtual machine. Right-click the name of the virtual machine and click Connect.
  
• 
  From the Action menu of Virtual Machine Connection, click Insert Integration Services Setup Disk. This action loads the setup disk in the virtual DVD drive. Depending on the guest operating system installed, you may
  need to start the installation manually.
  
• 
  After the installation finishes, all integration services are available for use.