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Get-NetTCPSetting

Gets information about TCP settings and configuration.

Last verified: 2026-10-26

Microsoft NetTCPIP reference: Gets information about TCP settings and configuration. The syntax and selected example below are adapted from the pinned Windows Server 2025 reference. Module availability, target configuration and delegated permissions determine whether it can run in your environment. Documentation and parameter text: Microsoft, CC BY 4.0; formatting adapted by Cmdlet World. No execution testing is claimed.

Get-NetTCPSetting [[-SettingName] <String[]>] [-MinRtoMs <UInt32[]>] [-InitialCongestionWindowMss <UInt32[]>]
 [-CongestionProvider <CongestionProvider[]>] [-CwndRestart <CwndRestart[]>] [-DelayedAckTimeoutMs <UInt32[]>]
 [-DelayedAckFrequency <Byte[]>] [-MemoryPressureProtection <MemoryPressureProtection[]>]
 [-AutoTuningLevelLocal <AutoTuningLevelLocal[]>] [-AutoTuningLevelGroupPolicy <AutoTuningLevelGroupPolicy[]>]
 [-AutoTuningLevelEffective <AutoTuningLevelEffective[]>] [-EcnCapability <EcnCapability[]>]
 [-Timestamps <Timestamps[]>] [-InitialRtoMs <UInt32[]>] [-ScalingHeuristics <ScalingHeuristics[]>]
 [-DynamicPortRangeStartPort <UInt16[]>] [-DynamicPortRangeNumberOfPorts <UInt16[]>]
 [-AutomaticUseCustom <AutomaticUseCustom[]>] [-NonSackRttResiliency <NonSackRttResiliency[]>]
 [-ForceWS <ForceWS[]>] [-MaxSynRetransmissions <Byte[]>] [-AutoReusePortRangeStartPort <UInt16[]>]
 [-AutoReusePortRangeNumberOfPorts <UInt16[]>] [-AssociatedTransportFilter <CimInstance>]
 [-CimSession <CimSession[]>] [-ThrottleLimit <Int32>] [-AsJob] [<CommonParameters>]

Required permissions

Use an account with the target resource permissions documented for Get-NetTCPSetting. Modifying administrative cmdlets may require elevation or delegated administration. This catalog does not assert that ordinary users can execute the command.

Supported environments

Windows / NetTCPIP · Windows Server 2025 documentation; feature/module prerequisites apply

Parameters

-AsJob

Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to complete.

-AssociatedTransportFilter

Specifies CIM object for a transport filter associated with a setting. The cmdlet gets the setting for this transport filter. To obtain a transport filter, use the Get-NetTransportFilter cmdlet.

-AutoReusePortRangeNumberOfPorts

Specifies the number of ports for the auto-reuse port range, which is a port range used for local ephemeral port selection by outbound TCP connections for which either SO_REUSE_UNICASTPORT has been set on the socket, or for which connect() has been called without calling bind() on the socket. If you specify 0, the auto-reuse feature is disabled and ephemeral ports are drawn instead from the dynamic port range as specified by *DynamicPortRangeStartPort* and *DynamicPortRangeNumberOfPorts*, even if SO_REUSE_UNICASTPORT is set on a socket.

-AutoReusePortRangeStartPort

Specifies the number of ports for the auto-reuse port range, which is a port range used for local ephemeral port selection by outbound TCP connections for which either SO_REUSE_UNICASTPORT has been set on the socket, or for which connect() has been called without calling bind() on the socket. If you specify 0, the auto-reuse feature is disabled and ephemeral ports are drawn instead from the dynamic port range as specified by *DynamicPortRangeStartPort* and *DynamicPortRangeNumberOfPorts*, even if SO_REUSE_UNICASTPORT is set on a socket.

-AutoTuningLevelEffective

Specifies an array of values of the TCP auto-tuning level effective property. The cmdlet gets settings that the values that you specify. This property can improve throughput for high thoughput, high latency networks. The acceptable values for this parameter are: - Local - GroupPolicy

-AutoTuningLevelGroupPolicy

Specifies an array of values for the group policy for the auto-tuning level. The cmdlet gets settings that have the values that you specify. This property determines the setting of the TCP auto-tuning level that group policy configures. A group policy applies uniformly across all NetTcpSetting objects. The auto-tuning level can improve throughput for high thoughput, high latency networks. The acceptable values for this parameter are: - Disabled - HighlyRestricted - Restricted - Normal - Experimental - NotConfigured - NotChanged

-AutoTuningLevelLocal

Specifies an array of TCP auto-tuning levels for the host computer. The cmdlet gets settings that have the values that you specify. TCP auto-tuning can improve throughput on high throughput, high latency networks. The acceptable values for this parameter are: - Disabled. Sets the TCP receive window to the default value. - HighlyRestricted. Sets the TCP receive window to grow beyond the default value, but very conservatively. - Restricted. Sets the TCP receive window to grow beyond the default value, but less conservatively than HighlyRestricted. - Normal. Sets the TCP receive window to grow to accommodate almost all scenarios. - Experimental. Sets the TCP receive window to grow to accommodate extreme scenarios.

Prerequisites

Windows with the NetTCPIP module and the Windows feature or management tools that provide it. Confirm target connectivity and version compatibility using the linked Microsoft reference.

Security considerations

This is a read-oriented cmdlet; protect any sensitive results and check the documented effects of your selected parameters.

Examples

Get-NetTCPSetting

Sources

https://github.com/MicrosoftDocs/windows-powershell-docs/blob/b7645dd8c687139b28e845119da30ec670526507/docset/winserver2025-ps/NetTCPIP/Get-NetTCPSetting.md

https://learn.microsoft.com/powershell/module/nettcpip/get-nettcpsetting?view=windowsserver2025-ps

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