Private network ranges for apps: registry value DomainSubnetsComputerHKLM\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation
- Policy ID
- WF_NetIsolation_PrivateSubnet
- 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
Registry
DomainSubnets
REG_SZComputer- Enabled value
- Depends on the option value
- Element
- Private subnets
- Value type
- REG_SZ
- Required
- true
- Maximum length
- 16383
Apply with .reg · CMD · PowerShell
.reg
Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation] ; Value names and types follow the ADMX. Replace <enter value> below with your own data "DomainSubnets"="<enter value>"
CMD
:: Value names and types follow the ADMX. Replace <enter value> below with your own data reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation" /v "DomainSubnets" /t REG_SZ /d "<enter value>" /f
PowerShell
# Value names and types follow the ADMX. Replace <enter value> below with your own data New-Item -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation' -Force | Out-Null New-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation' -Name 'DomainSubnets' -PropertyType String -Value '<enter value>' -Force | Out-Null