Subnet definitions are authoritative
- Policy ID
- WF_NetIsolation_Authoritative_Subnet
- Scope
- Computer Configuration
- Supported on
- At least Windows Server 2012, Windows 8 or Windows RT
- Source
- Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
- Category
- Network › Network Isolation
Description
This setting does not apply to desktop apps.
Turns off Windows Network Isolation's automatic discovery of private network hosts in the domain corporate environment.
If you enable this policy setting, it turns off Windows Network Isolation's automatic discovery of private network hosts in the domain corporate environment. Only network hosts within the address ranges configured via Group Policy will be classified as private.
If you disable or do not configure this policy setting, Windows Network Isolation attempts to automatically discover your private network hosts in the domain corporate environment.
For more information see: http://go.microsoft.com/fwlink/p/?LinkId=234043
Registry
ComputerHKEY_LOCAL_MACHINE
- DSubnetsAuthoritiveREG_DWORD