Policy
Turn on Responder (RSPNDR) driver
Windows 11 25H2
Policy overview
Key metadata and intent for this policy.
Supported OS tags: Windows10, Windows10RT, Windows11, Windows7, Windows8, Windows81, WindowsRT, WindowsRT81, WindowsServer2008, WindowsServer2012, WindowsServer2012R2, WindowsServer2016, WindowsVista
This policy setting changes the operational behavior of the Responder network protocol driver. The Responder allows a computer to participate in Link Layer Topology Discovery requests so that it can be discovered and located on the network. It also allows a computer to participate in Quality-of-Service activities such as bandwidth estimation and network health analysis. If you enable this policy setting, additional options are available to fine-tune your selection. You may choose the "Allow operation while in domain" option to allow the Responder to operate on a network interface that's connected to a managed network. On the other hand, if a network interface is connected to an unmanaged network, you may choose the "Allow operation while in public network" and "Prohibit operation while in private network" options instead. If you disable or do not configure this policy setting, the default behavior for the Responder will apply.
Registry values
How enabled and disabled states update the registry.
| Registry location | Type | Enabled value | Disabled value |
|---|---|---|---|
| HKLM\Software\Policies\Microsoft\Windows\LLTD\EnableRspndr | REG_DWORD | 1 | 0 |
Policy elements
Inputs and configuration options exposed by this policy.
| Element | Type | Registry mapping | Constraints & behavior |
|---|---|---|---|
Allow operation while in domain ID LLTD_EnableRspndr_AllowOnDomain | boolean | HKLM\Software\Policies\Microsoft\Windows\LLTD\AllowRspndrOnDomain Type REG_DWORD | Options: true (1), false (0) True: Set value = 1 · False: Set value = 0 |
Allow operation while in public network ID LLTD_EnableRspndr_AllowOnPublicNet | boolean | HKLM\Software\Policies\Microsoft\Windows\LLTD\AllowRspndrOnPublicNet Type REG_DWORD | Options: true (1), false (0) True: Set value = 1 · False: Set value = 0 |
Prohibit operation while in private network ID LLTD_EnableRspndr_ProhibitOnPrivateNet | boolean | HKLM\Software\Policies\Microsoft\Windows\LLTD\ProhibitRspndrOnPrivateNet Type REG_DWORD | Options: true (1), false (0) True: Set value = 1 · False: Set value = 0 |
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