Windows – Ubuntu 12.04 VM on Windows 8 Hyper-V – No Network Connectivity

According to Jeff Woolsey on windowsserver.uservoice.com, 802.1x support has been added:

In Windows Server 2019 & Windows 10 version 1809 & later we added support for 802.1x through the Hyper-V vSwitch. While many customers use IPSEC for transparent E2E network encryption, some still use 802.1×.

To enable 802.1x, run the following from an elevated command prompt:

reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\vmsmp\parameters" /v 8021xEnabled /t REG_DWORD /d 1 /f
shutdown /r /t 0

Further write-up by Didier Van Hoye on WorkingHardInIt.work blog.

I had the same issue on Ubuntu 17.04 running on Hyper-V/Windows 10.

The solution was quite simple once I found out. It looks like the default install option is to use Internal network, which does not grant internet access.

On the Ubuntu virtual machine in Hyper-V:

1. right click to get to the settings
2. navigate to the Network adapter
3. select the Network adapter and in the Virtual switch drop-down list change from "Layered_wi_fi" to "Not connected"
4. go to the Virtual Switch Manager (on the right in the Hyper-V manager)
5. select Layered_Wi-fi in the Virtual Switches section
6. change Connection type from "Internal network" to "External network"

Back on the Ubuntu virtual machine in Hyper-V:

7. right click to get to the settings
8. navigate to the Network adapter
9. select the Network adapter and in the Virtual switch drop-down list change from "Not connected" to "Layered_wi_fi"

Note: first I tried to simply to change from Internal network to External (steps 4-6) in the Virtual Switch Manager\Layered_Wi-fi section. This generated an error repeatedly. I think it was because the setting was in use, but it was not very clear. Once I did steps 1-3 first it worked like a charm.