I have a strange problem: for the long time I have received error ERR_NETWORK_CHANGED in Chrome and Chrome-based browsers (e.g. Opera). At the beginning I suspected Bitdefender firewall and VirtualBox private network adapters. Finally I have figured out that the source of the problem is a new "Default Switch" feature in Windows10 1709. This switch is visible in Network Connections as Unindentified Network and is a cause of trouble. When I disable this switch network adapter the error dissapears. What is the problem?
- The Default Switch is enabled even if hypervisor is disabled at boot (BCD setting: hypervisorlaunchtype off).
- When I remove adapter connected to Default Switch, it is recreated at the next boot.
- If I disable this adapter, Windows10 creates another "Default Switch".
I teach different courses about network/Windows/Linux technologies so uinstalling Hyper-V nor VirtualBox is not an option.
Is it possible to configure Windows10 networking to prevent this problem?
My initial idea to solve this problem is to create PS script that runs at logon and logoff disabling/enabling DefaultSwitch adapter. So far I am not able to discover the Hyper-V hypervisor state (on/off). PS cmdlet Get-WindowsOptionalFeature Hyper-v -online informs only that Hyper-V is enabled or disabled, but not about its current state (on/off).