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Network Issues on Guest

Chad Richardson 81 Reputation points
2021-12-22T22:37:49.937+00:00

TLDR;

  • I upgraded my Guest VM from Windows 10 to 11 and networking broke on the Guest
  • My Guest windows 11 VM can't connect to the internet or internal network (printers, NAS).
  • I've read mixed suggestions on if you just need to share the Default Switch (internal) with the Guest or if you should create a new External switch or do you need both? Regardless, I've tried all with no luck.

Details

I'm a developer and use different VMs to test code in different environments. I normally connect to the guests via native boot to a vhdx.

My primary guest VM I upgraded to Windows 11 (while using it from the Host as you can't upgrade a native boot virtual disk) and it has caused some issues in that I lost networking in the guest. At first, I had external internet access (could browse to CNN.com for example), but could not longer see network printers. However, I could connect to the VM via the host (instead of from native boot) and then I could print from the Guest to the network printers.

I then began fiddling with Virtual Switches, etc now the Guest can't connect to internal or external networks :(

Here's some more details of my config.

Virtual Switches

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Guest VM Setting

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Host Physical Network Adapter (Plugable is a docking station)
I thought this was weird that only these 2 properties are checked:

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Host Default Switch

I thought this was weird that it had all these checked, but NOT the HyperV Extensible Virtual Switch

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Guest VM Network
ipconfig / all results in:
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Windows for business | Windows Client for IT Pros | Networking | Network connectivity and file sharing
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Accepted answer
  1. Anonymous
    2021-12-22T23:49:47.493+00:00

    but still has some issues with local network devices

    Don't use the default switch, use an external vSwitch.

    --please don't forget to upvote and Accept as answer if the reply is helpful--

    1 person found this answer helpful.
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  1. Anonymous
    2021-12-22T22:58:09.353+00:00

    Ethernet 5 did not find a DHCP server so it now has an APIPA 169.254.xxx.xxx address.
    Is this adapter plugged into a router that has a DHCP server?
    159810-image.png

    About the external vSwitch; When you create a new external vSwitch the internet protocols are removed from the adapter and the Hyper-V Extensible Switch protocol is added turning that physical port into a multi-port virtual switch.
    https://blogs.technet.microsoft.com/jhoward/2008/06/17/hyper-v-what-are-the-uses-for-different-types-of-virtual-networks/

    --please don't forget to upvote and Accept as answer if the reply is helpful--

    1 person found this answer helpful.

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