Windows 10: Hyper-V VM Networking thru the default switch

Hello,

I'm trying to get networking working in a VM using the hyper-v default switch. Eventually I want to run a Linux image, but I'm starting with Windows 10 'dev environment' image to work things out. The Windows image starts, and thinks it has an up adapter, got the 172.* address, etc. However, it can't reach anything outside. No internet.


Does ICS have to be enabled for the Default Switch to work? (disabled on this machine). What else might be the cause?


Lenovo X1 laptop


Windows 10 Enterprise

Version1803

OS build 17134.472


Thanks!

:)

 

Hyper-v virtual switch breaks my network

The default switch is somewhat problematic, I simply cannot understand why MS has decided that it can't be deleted and re-created, to resolve connection issues or simply because user does not need it.

Sometimes it simply does not work and as no apparent reason can be found, the only option user has left with is to disable Hyper-V feature, restart and enable Hyper-V again. This can in some cases lead to lost virtual machines.

That being said, I find it positive that there now exists an option to set up a VM using NAT networking. Default switch is an important feature, I just wish it could be managed as any other switch.

BTW, a workaround for those users who'd prefer not to create an external switch but also would prefer allowing full and easy networking between host and guest thus not wanting to use default switch is simply to set up an internal switch in Hyper-V Virtual Switch Manager, make VM to use it, and share host's Internet connection with this internal switch.

 

Hyper-v virtual switch breaks my network


Kari: I'm going to add this tip: disable Hyper-V - restart PC - re-enable Hyper-V as a suggested (potential) fix for default switch issues to my recent blog post on that topic. Thanks for working this through with the OP.
--Ed--

 

Hyper-V networking

Windows 10 Pro, Build 10586.71. Hyper-V installed. All was working well, and then I got a chipset update from Dell. Installed the update and rebooted computer. After that networking was not working correctly, windows showed limited connectivity. I looked
a little to roll back the driver update, but Windows did not show a new Nic card driver and the chipsets I looked at also did not show a current date. The Dell Command update program does not provide a way to uninstall updates.

I tried to access hyper-v switch manager but it returns an error that "an error occurred while trying to retrieve a list of virtual switches". Also tried using the powershell cmdlet but got a general error.

I accessed the networking center and deleted the Hyper V adapter, then edited my LAN card's config disabling the two Hyper V protocols and enabling the rest. This let me get back on-line with my computer. I have tried uninstalling the Hyper V feature,
reboot, reinstall - but I am still unable to access the switch manager. I then removed the feature again, re-named the C:\ProgramData\Microsoft\Windows\Hyper-V directory, rebooted, added the feature again. This time (obviously) none of my VM's show up but
I'm still unable to access the switch manager.

There is no critical data in my Hyper V, I use it for testing, re-creating issues, learning, etc. Is there a way for Windows 10 (or something designed for server 2012 that will apply) that I can use to fully reset the Hyper v networking, or fully rest all
of hyper v so I can get it working again? I do use the workstation heavily, it's my work computer so it would be very difficult to impossible to reinstall the OS.

Thoughts and suggestions appreciated.