Hyper-V Internet access on one VM but not the other

Delaney Horton 21 Reputation points
2022-01-24T21:17:07.427+00:00

I have two VMs residing on my Hyper-V host. One is a Windows 10 and the other is a Windows Server 2016 instance.
I have one external switch created and it is attached to both of the virtual machines.
The Windows 10 VM is able to access the Internet, but the Windows Server 2016 VM cannot.
I have tried removing the switch from the VM and adding it back, but it doesn't make a difference.
How could this be the case when they are both using the same external virtual switch?

Hyper-V
Hyper-V
A Windows technology providing a hypervisor-based virtualization solution enabling customers to consolidate workloads onto a single server.
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  1. Limitless Technology 39,351 Reputation points
    2022-02-01T08:48:37.477+00:00

    Hi there,

    This can happen when you have IPv6 turned on. IPv4 connects but for whatever reason IPv6 doesn't show as connected and you get the warning. Most of the time a reboot solves it, or you can reset the adapter in Powershell:

    restart-netadapter "adaptername"

    Here is a thread as well that discusses the same issue and you can try out some troubleshooting steps from this and see if that helps you to sort the Issue.

    No network access for one VM (6 running fine). Hyper-V
    https://learn.microsoft.com/en-us/answers/questions/538132/no-network-access-for-one-vm-6-running-fine-hyper.html

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