After installing hyper-v and running a virtual machine my ethernet connection on the host system was disconnected

Question

How do I fix this, I already uninstalled Hyper-V. I uninstalled and reinstalled the LAN drivers.

Answer 1

Hi Nestor,

Thanks for your post. Generally speaking, this issue will happen if your virtual switch is shared with the management operating system. You can temporarily remove the Hyper-V virtual switch to remove the Hyper-V virtual ethernet adapter.

In the work pane, expand Virtual Switches. Right-click the virtual switch that you want to remove and select Remove Virtual Switch. Or, you can select the virtual switch and click Action > Remove Virtual Switch. Click OK when you are prompted to confirm the removal.

Best Regards,

Ian Xue

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Answer 2

Hi Nestor,

what a NIC do you use?

In the past I have had similar disconnections and performance problems with some NICs. Back then, disabling VMQ on the host NIC helped:

Set-NetAdapterVmq -Name "NIC_name" -Enabled $False

Let me know, if it helped.

Kind Regards

Maurycy

Answer 3

Hello Nestor.
Does the problem occur only when the VM is up and running? It could be due to the configuration of the virtual network card.

Bye.