Windows 10: Hyper-V Default Switch Repetitive Re-creation on Windows 10 1809 (10.0.17763)

On Thursday 2018-10-04 my host development PC + several guest Windows 10 machines all updated to the latest Windows 10 1809 feature release apparently without incident.


My guest machines use the Hyper-V default switch for their NAT networking which has worked effectively for the past year.

I have just noticed however every time you reboot the host, the default switch is getting deleted and then recreated and hence allocated a new network identity and IP address (the Hyper-V default switch uses /28 network for its NAT network). The event log confirms the adapter deletion and re-creation events following a reboot.

The effect of this is that each guest is constantly seeing a new network following a host reboot. This is not correct behaviour and the in the past the identity of the default switches network adapter remained stable between reboots and consequently its assigned /28 network also remained stable.


I have some Windows 10 guest machines with Hyper-V installed within the guest (required for virtual device development). This guest machines also have a nested default switch which also exhibits the same delete/recreate behaviour following a guest machine restart.


I was tempted to roll back of the feature update on the host, but have since noticed I am beyond the 10 days grace period for feature roll back which seems a very short time.


Consequently I am stuck with the behaviour for the present.

I am hoping a fix for this will be available for this bug in the future.


As a side not I wish Microsoft would give us control of the IP address assigned to the Hyper-V default switch.

:)

 

Windows 10 Host -- Windows 10 Guest Hyper-V -- GPU not detected

I am using the Microsoft Hyper-V virtual machine software on 1 of my Windows 10 PCs and have all kinds of VMs (Guest OSes) under it.
By default, Hyper-V gives very basic GPU capability to the VMs, without even 2D acceleration, but for Windows Vista or higher Guest OSes, an option to have some 2D/3D GPU/DirectX acceleration exists by adding a RemoteFX adapter to the Guest OS.

When I do this, then run GPU-Z on the VM/Guest OS, NO proper (or any) info shows, see screenshot:




Larger shot is here: https://www.dropbox.com/s/8kxya995jrn8io7/img-2017-02-23-10-18-28.png?dl=0

DxDiag info of GPU is here: https://s.mail.ru/36AR/US54QiCM5

Expected: Show Microsoft logo as videocard maker logo, list OS used (Windows 10 in this case, but could be Vista, Windows 7, 8/8.1/etc), and amount of memory of the GPU (such as 128 MB, 256 MB/etc).

Please add!

 

Hyper-V Virtual Switch

Have you followed steps exactly as is this tutorial?

Hyper-V virtualization - Setup and Use in Windows 10 - Windows 10 Forums

 

How to enable Hyper V windows 10

fwiw;

Operating System Requirements

The Hyper-V
role can be enabled on these versions of Windows 10:

• Windows 10 Enterprise
• Windows 10 Professional
• Windows 10 Education

The Hyper-V role cannot be installed on:

• Windows 10 Home
• Windows 10 Mobile
• Windows 10 Mobile Enterprise