Policy

Set authentication rate limiter delay (milliseconds)

Microsoft Windows

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Set authentication rate limiter delay (milliseconds)
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Policy overview

Key metadata and intent for this policy.

Computer
Category
Network > Lanman Server
Supported on
Windows Server 2025 Windows 11 24H2

Supported OS tags: Windows11, WindowsServer2025

This policy controls whether the SMB server will use a default value in milliseconds for the invalid authentication delay. If you configure this policy setting, the authentication rate limiter will use the specified value for delaying invalid authentication attempts. If you do not configure this policy setting, the authentication rate limiter will use the default value or the value from local registry under HKLM\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters.

Internal name
Pol_AuthRateLimiterDelayInMs
Policy ID
a7624a418286
Elements
1

Registry values

How enabled and disabled states update the registry.

No explicit registry values are set for enabled or disabled states.

Policy elements

Inputs and configuration options exposed by this policy.

ScopeElementTypeRegistry mappingConstraints & behaviorCopy
Computer
Value (milliseconds):
ID DecimalTextBox_AuthRateLimiterDelayInMs
decimal
Path
Software\Policies\Microsoft\Windows\LanmanServer
Value name
InvalidAuthenticationDelayTimeInMs
Type
REG_DWORD
Range: 0 to 10000
Value (milliseconds):
Computer · Type decimal
Registry mapping
Path
Software\Policies\Microsoft\Windows\LanmanServer
Value name
InvalidAuthenticationDelayTimeInMs
Type
REG_DWORD
Details
Range: 0 to 10000