Hyper-V: Virtual Adapter Not Displaying Activity Status

Question

I’m using two network cards, with one dedicated to Hyper-V. However, the physical adapter for Hyper-V has disappeared from the Task Manager. Although the virtual adapter is visible, it doesn’t show any activity. It seems the activity is being tracked under the missing adapter, preventing me from monitoring the real-time usage of the VMs’ adapter. I’ve attached an image for better understanding.

Answer 1

Hi Allan,

Hope you're doing well.

Based on the information you provided, it seems that the physical adapter for Hyper-V has disappeared from the Task Manager, and the virtual adapter is visible but doesn't show any activity. You mentioned that the activity is being tracked under the missing adapter, preventing you from monitoring the real-time usage of the VMs' adapter.

One of the solutions is to change the network adapter to Legacy. On the VM settings, choose "Add Hardware" - "Legacy Network adapter" and then Connect network adapter to virtual switch. The reasoning behind this is that these adapters have different drivers, so the legacy driver may be the most compatible one with the VM installation.

Another solution is to run the command. Please run cmd as an administrator and then input the following command: set devmgr_show_nonpresent_devices=1

Then, in Device Manager, click VIEW then SHOW HIDDEN DEVICES. Expand NETWORK ADAPTORS and check if there are any grayed-out NICs and select UNINSTALL.

I hope this helps!

Best Regards,

Ian Xue

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