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

Nestor Vassilakis 0 Reputation points
2024-04-02T15:50:14.5233333+00:00

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

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. Luigi Bruno 241 Reputation points
    2024-04-02T19:37:46.8666667+00:00

    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.

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  2. Maurycy Suchanski 20 Reputation points
    2024-04-02T21:47:30.69+00:00

    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

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  3. Ian Xue (Shanghai Wicresoft Co., Ltd.) 29,971 Reputation points Microsoft Vendor
    2024-04-09T07:26:30.66+00:00

    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

    If the Answer is helpful, please click "Accept Answer" and upvote it.

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