Receive-side scaling is unexpectedly disabled on a Windows Server 2008-based computer

Symptoms

Consider the following scenario:

  • You have a computer that runs Windows Server 2008.

  • A network adapter that supports receive-side scaling (RSS) is installed on the computer.

  • You enable receive-side scaling on the network adapter.

In this scenario, receive-side scaling may be disabled unexpectedly. Additionally, some TCP connections may be reset.

If you use the netsh int tcp show global command to query for the receive-side scaling status, you receive output that indicates that receive-side scaling is disabled. This output resembles the following:Querying active state...

TCP Global Parameters
----------------------------------------------
Receive-Side Scaling State : disabled
Chimney Offload State : enabled
Receive Window Auto-Tuning Level : highlyrestricted
Add-On Congestion Control Provider : none
ECN Capability : disabled
RFC 1323 Timestamps : disabled
Notes

Receive-side scaling helps improve network processing on computers that have multiple processors and high-speed network adapters. Therefore, this problem usually may be seen on computers that have 10-gigabit network adapters.

When this problem occurs, you lose the increase in network bandwidth that results from receive-side scaling.

Resolution

Hotfix information

Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Server 2008 file information notes

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    Milestone

    Service branch

    6.0.6000.16xxx

    Windows Vista

    RTM

    GDR

    6.0.6000.20xxx

    Windows Vista

    RTM

    LDR

    6.0.6001.18xxx

    Windows Vista SP1 and Windows Server 2008 SP1

    SP1

    GDR

    6.0.6001.22xxx

    Windows Vista SP1 and Windows Server 2008 SP1

    SP1

    LDR

  • Service Pack 1 is integrated into Windows Server 2008.

  • The MANIFEST files (.manifest) and MUM files (.mum) installed for each environment are listed separately. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.

For all supported 32-bit versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

Netio.sys

6.0.6001.22302

221,448

05-Nov-2008

07:06

x86

Bfe.dll

6.0.6001.22302

328,704

04-Nov-2008

06:35

x86

Fwpkclnt.sys

6.0.6001.22302

99,592

05-Nov-2008

07:04

x86

Fwpuclnt.dll

6.0.6001.22302

595,456

04-Nov-2008

06:35

x86

Ikeext.dll

6.0.6001.22302

438,272

04-Nov-2008

06:35

x86

Wfp.mof

Not Applicable

814

18-Dec-2007

21:11

Not Applicable

Wfp.tmf

Not Applicable

175,508

04-Nov-2008

04:31

Not Applicable

Tcpip.sys

6.0.6001.22302

890,120

05-Nov-2008

07:10

x86

For all supported 64-bit versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

Netio.sys

6.0.6001.22302

343,816

05-Nov-2008

07:35

x64

Bfe.dll

6.0.6001.22302

458,240

04-Nov-2008

07:01

x64

Fwpkclnt.sys

6.0.6001.22302

166,664

05-Nov-2008

07:35

x64

Fwpuclnt.dll

6.0.6001.22302

779,776

04-Nov-2008

07:01

x64

Ikeext.dll

6.0.6001.22302

454,656

04-Nov-2008

07:01

x64

Wfp.mof

Not Applicable

814

18-Dec-2007

21:10

Not Applicable

Wfp.tmf

Not Applicable

174,680

04-Nov-2008

05:02

Not Applicable

Tcpip.sys

6.0.6001.22302

1,411,336

05-Nov-2008

07:40

x64

Fwpuclnt.dll

6.0.6001.22302

595,456

04-Nov-2008

06:35

x86

Wfp.mof

Not Applicable

814

18-Dec-2007

21:11

Not Applicable

For all supported Itanium-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

Netio.sys

6.0.6001.22302

639,752

05-Nov-2008

04:48

IA-64

Bfe.dll

6.0.6001.22302

781,312

04-Nov-2008

06:44

IA-64

Fwpkclnt.sys

6.0.6001.22302

262,408

05-Nov-2008

04:47

IA-64

Fwpuclnt.dll

6.0.6001.22302

1,122,304

04-Nov-2008

06:46

IA-64

Ikeext.dll

6.0.6001.22302

925,184

04-Nov-2008

06:46

IA-64

Wfp.mof

Not Applicable

814

18-Dec-2007

21:11

Not Applicable

Wfp.tmf

Not Applicable

174,775

04-Nov-2008

04:52

Not Applicable

Tcpip.sys

6.0.6001.22302

2,917,128

05-Nov-2008

04:58

IA-64

Fwpuclnt.dll

6.0.6001.22302

595,456

04-Nov-2008

06:35

x86

Wfp.mof

Not Applicable

814

18-Dec-2007

21:11

Not Applicable

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about receive-side scaling, refer to the "RSS_Server2008.docx" document. To download this document, visit the following Microsoft Web site:

http://www.microsoft.com/whdc/device/network/NDIS_RSS.mspxFor more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information for Windows Server 2008

Additional files for all supported 32-bit versions of Windows Server 2008

File name

Package_1_for_kb958015~31bf3856ad364e35~x86~~6.0.1.0.mum

File version

Not Applicable

File size

2,230

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_2_for_kb958015~31bf3856ad364e35~x86~~6.0.1.0.mum

File version

Not Applicable

File size

2,177

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_3_for_kb958015~31bf3856ad364e35~x86~~6.0.1.0.mum

File version

Not Applicable

File size

1,729

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_4_for_kb958015~31bf3856ad364e35~x86~~6.0.1.0.mum

File version

Not Applicable

File size

2,235

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_5_for_kb958015~31bf3856ad364e35~x86~~6.0.1.0.mum

File version

Not Applicable

File size

2,235

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum

File version

Not Applicable

File size

1,641

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_client~31bf3856ad364e35~x86~~6.0.1.0.mum

File version

Not Applicable

File size

1,431

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum

File version

Not Applicable

File size

1,422

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_sc~31bf3856ad364e35~x86~~6.0.1.0.mum

File version

Not Applicable

File size

1,423

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum

File version

Not Applicable

File size

1,425

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_server~31bf3856ad364e35~x86~~6.0.1.0.mum

File version

Not Applicable

File size

1,431

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_winpesrv_0~31bf3856ad364e35~x86~~6.0.1.0.mum

File version

Not Applicable

File size

1,422

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_winpesrv~31bf3856ad364e35~x86~~6.0.1.0.mum

File version

Not Applicable

File size

1,430

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

X86_4dd6de58e46a65e8a934a7702b07d5a0_31bf3856ad364e35_6.0.6001.22302_none_b725ad8d75975d1a.manifest

File version

Not Applicable

File size

702

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

X86_6773411533efaf591fbf89e8afee8fb0_31bf3856ad364e35_6.0.6001.22302_none_de61c696ada3201f.manifest

File version

Not Applicable

File size

1,056

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

X86_f5b31680bba319ea8db9dc1d9739de3e_31bf3856ad364e35_6.0.6001.22302_none_909c0c562f1bc13e.manifest

File version

Not Applicable

File size

1,402

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

X86_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.0.6001.22302_none_57270e00ce695425.manifest

File version

Not Applicable

File size

3,908

Date (UTC)

05-Nov-2008

Time (UTC)

07:33

Platform

Not Applicable

File name

X86_microsoft-windows-network-security_31bf3856ad364e35_6.0.6001.22302_none_cdb0111443a6a4cf.manifest

File version

Not Applicable

File size

127,634

Date (UTC)

05-Nov-2008

Time (UTC)

07:35

Platform

Not Applicable

File name

X86_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.0.6001.22302_none_b3a9b37d7f820dbc.manifest

File version

Not Applicable

File size

6,254

Date (UTC)

05-Nov-2008

Time (UTC)

07:36

Platform

Not Applicable

Additional files for all supported 64-bit versions of Windows Server 2008

File name

Amd64_1d9ba307a29314e138299732e29d2b3c_31bf3856ad364e35_6.0.6001.22302_none_615b89fa4a2b8b19.manifest

File version

Not Applicable

File size

1,766

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Amd64_527ec4ebe0d8036504980596573a20a3_31bf3856ad364e35_6.0.6001.22302_none_eae949160bb8e0ec.manifest

File version

Not Applicable

File size

1,410

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Amd64_6c7ceb6fac587d113061628058dbc674_31bf3856ad364e35_6.0.6001.22302_none_c6609171782a010e.manifest

File version

Not Applicable

File size

2,114

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Amd64_86ff37183a2c1ac8f583de706b918d1d_31bf3856ad364e35_6.0.6001.22302_none_984e9ca23edc3e95.manifest

File version

Not Applicable

File size

706

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Amd64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.0.6001.22302_none_b345a98486c6c55b.manifest

File version

Not Applicable

File size

3,916

Date (UTC)

05-Nov-2008

Time (UTC)

08:39

Platform

Not Applicable

File name

Amd64_microsoft-windows-network-security_31bf3856ad364e35_6.0.6001.22302_none_29ceac97fc041605.manifest

File version

Not Applicable

File size

127,680

Date (UTC)

05-Nov-2008

Time (UTC)

08:42

Platform

Not Applicable

File name

Amd64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.0.6001.22302_none_0fc84f0137df7ef2.manifest

File version

Not Applicable

File size

6,276

Date (UTC)

05-Nov-2008

Time (UTC)

08:43

Platform

Not Applicable

File name

Package_1_for_kb958015~31bf3856ad364e35~amd64~~6.0.1.0.mum

File version

Not Applicable

File size

2,244

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_2_for_kb958015~31bf3856ad364e35~amd64~~6.0.1.0.mum

File version

Not Applicable

File size

2,643

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_3_for_kb958015~31bf3856ad364e35~amd64~~6.0.1.0.mum

File version

Not Applicable

File size

1,739

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_4_for_kb958015~31bf3856ad364e35~amd64~~6.0.1.0.mum

File version

Not Applicable

File size

2,701

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_5_for_kb958015~31bf3856ad364e35~amd64~~6.0.1.0.mum

File version

Not Applicable

File size

2,701

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum

File version

Not Applicable

File size

1,651

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_client~31bf3856ad364e35~amd64~~6.0.1.0.mum

File version

Not Applicable

File size

1,439

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

File version

Not Applicable

File size

1,430

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum

File version

Not Applicable

File size

1,431

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

File version

Not Applicable

File size

1,433

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_server~31bf3856ad364e35~amd64~~6.0.1.0.mum

File version

Not Applicable

File size

1,439

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_winpesrv_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

File version

Not Applicable

File size

1,430

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_winpesrv~31bf3856ad364e35~amd64~~6.0.1.0.mum

File version

Not Applicable

File size

1,438

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Wow64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.0.6001.22302_none_bd9a53d6bb278756.manifest

File version

Not Applicable

File size

2,730

Date (UTC)

05-Nov-2008

Time (UTC)

07:27

Platform

Not Applicable

File name

Wow64_microsoft-windows-network-security_31bf3856ad364e35_6.0.6001.22302_none_342356ea3064d800.manifest

File version

Not Applicable

File size

71,155

Date (UTC)

05-Nov-2008

Time (UTC)

07:28

Platform

Not Applicable

Additional files for all supported Itanium-based versions of Windows Server 2008

File name

Ia64_142ab6481ff90b79528d0902002e1590_31bf3856ad364e35_6.0.6001.22302_none_e5500dd6210a4fe9.manifest

File version

Not Applicable

File size

2,110

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Ia64_1e3a32d097c3f65cf76ad481fa2bbed1_31bf3856ad364e35_6.0.6001.22302_none_11893d28b4310068.manifest

File version

Not Applicable

File size

1,406

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Ia64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.0.6001.22302_none_5728b1f6ce675d21.manifest

File version

Not Applicable

File size

3,912

Date (UTC)

05-Nov-2008

Time (UTC)

07:42

Platform

Not Applicable

File name

Ia64_microsoft-windows-network-security_31bf3856ad364e35_6.0.6001.22302_none_cdb1b50a43a4adcb.manifest

File version

Not Applicable

File size

127,657

Date (UTC)

05-Nov-2008

Time (UTC)

07:44

Platform

Not Applicable

File name

Ia64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.0.6001.22302_none_b3ab57737f8016b8.manifest

File version

Not Applicable

File size

6,265

Date (UTC)

05-Nov-2008

Time (UTC)

07:45

Platform

Not Applicable

File name

Package_1_for_kb958015~31bf3856ad364e35~ia64~~6.0.1.0.mum

File version

Not Applicable

File size

2,237

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_2_for_kb958015~31bf3856ad364e35~ia64~~6.0.1.0.mum

File version

Not Applicable

File size

2,694

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_3_for_kb958015~31bf3856ad364e35~ia64~~6.0.1.0.mum

File version

Not Applicable

File size

2,694

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_sc_0~31bf3856ad364e35~ia64~~6.0.1.0.mum

File version

Not Applicable

File size

1,425

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_sc~31bf3856ad364e35~ia64~~6.0.1.0.mum

File version

Not Applicable

File size

1,426

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mum

File version

Not Applicable

File size

1,429

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_server~31bf3856ad364e35~ia64~~6.0.1.0.mum

File version

Not Applicable

File size

1,434

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_winpesrv_0~31bf3856ad364e35~ia64~~6.0.1.0.mum

File version

Not Applicable

File size

1,426

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Package_for_kb958015_winpesrv~31bf3856ad364e35~ia64~~6.0.1.0.mum

File version

Not Applicable

File size

1,433

Date (UTC)

05-Nov-2008

Time (UTC)

22:05

Platform

Not Applicable

File name

Wow64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.0.6001.22302_none_bd9a53d6bb278756.manifest

File version

Not Applicable

File size

2,730

Date (UTC)

05-Nov-2008

Time (UTC)

07:27

Platform

Not Applicable

File name

Wow64_microsoft-windows-network-security_31bf3856ad364e35_6.0.6001.22302_none_342356ea3064d800.manifest

File version

Not Applicable

File size

71,155

Date (UTC)

05-Nov-2008

Time (UTC)

07:28

Platform

Not Applicable

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