Private network ranges for apps
Verified with Windows 11 25H2 — updated on July 30, 2026
Supported on: At least Windows Server 2012, Windows 8 or Windows RT
Path in the GPO console
Computer Configuration\Administrative Templates\Network\Network Isolation Description
This setting does not apply to desktop apps. A comma-separated list of IP address ranges that are in your corporate network. If you enable this policy setting, it ensures that apps with the Home/Work Networking capability have appropriate access to your corporate network. These addresses are only accessible to apps if and only if the app has declared the Home/Work Networking capability. Windows Network Isolation attempts to automatically discover private network hosts. By default, the addresses configured with this policy setting are merged with the hosts that are declared as private through automatic discovery. To ensure that these addresses are the only addresses ever classified as private, enable the "Subnet definitions are authoritative" policy setting. If you disable or do not configure this policy setting, Windows Network Isolation attempts to automatically discover your private network hosts. Example: 3efe:1092::/96,18.1.1.1/10 For more information see: http://go.microsoft.com/fwlink/p/?LinkId=234043
Registry
SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation MDM / Intune (CSP)
./Device/Vendor/MSFT/Policy/Config/NetworkIsolation/EnterpriseIPRange Microsoft Learn documentation Mapping data: Microsoft Learn (CC BY 4.0)
Export Builder
BETAConfigure the state, scope and options, then generate .reg, PowerShell, Intune and SCCM outputs — or add the setting to a multi-setting collection.
These exports write the registry — this is not a managed GPO. ⓘ
.reg file
Windows Registry Editor Version 5.00
; Exported from gporais.com
; Policy: Private network ranges for apps
; State: Enabled
; Supported on: At least Windows Server 2012, Windows 8 or Windows RT
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation]
"DomainSubnets"=""More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Private network ranges for apps
# State: Enabled
# Supported on: At least Windows Server 2012, Windows 8 or Windows RT
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DomainSubnets' -Value '' -Type StringIntune XML
OMA-URI: ./Device/Vendor/MSFT/Policy/Config/NetworkIsolation/EnterpriseIPRange
Data type: String
Value:
<enabled/>
<data id="WF_NetIsolation_PrivateSubnetBox" value=""/>Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Private network ranges for apps
# State: Enabled
# Supported on: At least Windows Server 2012, Windows 8 or Windows RT
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation' -Name 'DomainSubnets' -Expected '' -Kind String)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Private network ranges for apps
# State: Enabled
# Supported on: At least Windows Server 2012, Windows 8 or Windows RT
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DomainSubnets' -Value '' -Type StringSCCM scripts
# Exported from gporais.com
# Policy: Private network ranges for apps
# State: Enabled
# Supported on: At least Windows Server 2012, Windows 8 or Windows RT
# SCCM Configuration Item guidance:
# Create a Configuration Item of type "Setting: Script".
# Discovery script: use the Detection script below.
# Remediation script: use the Remediation script below.
# Compliance rule: the Discovery script output equals 'Compliant'.
# === Detection script ===
# Exported from gporais.com
# Policy: Private network ranges for apps
# State: Enabled
# Supported on: At least Windows Server 2012, Windows 8 or Windows RT
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation' -Name 'DomainSubnets' -Expected '' -Kind String)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Private network ranges for apps
# State: Enabled
# Supported on: At least Windows Server 2012, Windows 8 or Windows RT
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DomainSubnets' -Value '' -Type StringBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.