The Routing and Remote Access service may crash when there are several connections established concurrently on a computer that is running Windows Server 2008 or Windows Server 2008 R2

Symptoms

Consider the following scenario:

  • You install the Network Policy and Access Services server role on a server that is running Windows Server 2008 or Windows Server 2008 R2. The Routing and Remote Access service is running on this server.

  • You configure the server to accept one or more of the following connections:

    • Point-to-Point Tunneling Protocol (PPTP)

    • Layer 2 Tunneling Protocol (L2TP)

    • Secure Socket Tunneling Protocol (SSTP)

  • Several clients connect to the server concurrently.

In this scenario, the Routing and Remote Access service (RRAS) may crash. When this service crashes, all existing virtual private network (VPN) connections are terminated and no new VPN connections can be established. You have to manually restart the server to recover from the issue.

Cause

This problem is caused by a timing issue in the Route Table Manager (iprtrmgr.dll) of the RRAS. When the timing issue occurs, the RRAS accesses a freed memory space. This behavior triggers an access violation exception that crashes the RRAS.

Resolution

Hotfix information

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.
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.

Prerequisites

To apply this hotfix, your computer must be running one of the following operating systems:

  • Windows Server 2008

  • Windows Server 2008 Service Pack 2 (SP2)

  • Windows Server 2008 R2

Additionally, you must have the Network Policy and Access Services server role installed on the computer.

Restart requirement

You must restart the Routing and Remote Access service after you install this hotfix

Registry information

You do not have to make any change to the registry.

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 note

The MANIFEST files (.manifest) and the MUM files (.mum) that are 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 x86-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

SP requirement

Iprtprio.dll

6.0.6001.22473

8,192

16-Jul-2009

16:19

x86

SP1

Iprtrmgr.dll

6.0.6001.22473

252,416

16-Jul-2009

16:19

x86

SP1

Mprdim.dll

6.0.6001.22473

68,608

16-Jul-2009

16:19

x86

SP1

Rasmigplugin.dll

7.2.6001.22473

115,200

16-Jul-2009

16:21

x86

SP1

Rtm.dll

6.0.6001.22473

114,688

16-Jul-2009

16:21

x86

SP1

Iprtprio.dll

6.0.6002.22175

8,192

16-Jul-2009

14:15

x86

SP2

Iprtrmgr.dll

6.0.6002.22175

252,416

16-Jul-2009

14:15

x86

SP2

Mprdim.dll

6.0.6002.22175

68,608

16-Jul-2009

14:15

x86

SP2

Rasmigplugin.dll

7.2.6002.22175

115,200

16-Jul-2009

14:15

x86

SP2

Rtm.dll

6.0.6002.22175

114,688

16-Jul-2009

14:15

x86

SP2

For all supported x64-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Iprtprio.dll

6.0.6001.22473

9,728

16-Jul-2009

16:40

x64

SP1

Not Applicable

Iprtrmgr.dll

6.0.6001.22473

279,040

16-Jul-2009

16:40

x64

SP1

Not Applicable

Mprdim.dll

6.0.6001.22473

87,552

16-Jul-2009

16:41

x64

SP1

Not Applicable

Rasmigplugin.dll

7.2.6001.22473

153,600

16-Jul-2009

16:42

x64

SP1

Not Applicable

Rtm.dll

6.0.6001.22473

137,728

16-Jul-2009

16:42

x64

SP1

Not Applicable

Iprtprio.dll

6.0.6001.22473

8,192

16-Jul-2009

16:19

x86

SP1

WOW

Iprtrmgr.dll

6.0.6001.22473

252,416

16-Jul-2009

16:19

x86

SP1

WOW

Mprdim.dll

6.0.6001.22473

68,608

16-Jul-2009

16:19

x86

SP1

WOW

Rasmigplugin.dll

7.2.6001.22473

115,200

16-Jul-2009

16:21

x86

SP1

WOW

Rtm.dll

6.0.6001.22473

114,688

16-Jul-2009

16:21

x86

SP1

WOW

Iprtprio.dll

6.0.6002.22175

9,728

16-Jul-2009

16:16

x64

SP2

Not Applicable

Iprtrmgr.dll

6.0.6002.22175

279,040

16-Jul-2009

16:16

x64

SP2

Not Applicable

Mprdim.dll

6.0.6002.22175

87,552

16-Jul-2009

16:16

x64

SP2

Not Applicable

Rasmigplugin.dll

7.2.6002.22175

153,600

16-Jul-2009

16:18

x64

SP2

Not Applicable

Rtm.dll

6.0.6002.22175

137,728

16-Jul-2009

16:18

x64

SP2

Not Applicable

Iprtprio.dll

6.0.6002.22175

8,192

16-Jul-2009

14:15

x86

SP2

WOW

Iprtrmgr.dll

6.0.6002.22175

252,416

16-Jul-2009

14:15

x86

SP2

WOW

Mprdim.dll

6.0.6002.22175

68,608

16-Jul-2009

14:15

x86

SP2

WOW

Rasmigplugin.dll

7.2.6002.22175

115,200

16-Jul-2009

14:15

x86

SP2

WOW

Rtm.dll

6.0.6002.22175

114,688

16-Jul-2009

14:15

x86

SP2

WOW

Windows Server 2008 R2 file information notes

Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Iprtrmgr.dll

6.1.7600.20776

281,088

10-Aug-2010

05:16

x64

Pbkmigr-mig.dll

7.2.7600.20776

57,856

10-Aug-2010

05:19

x64

Rasapi-dl.man

Not Applicable

2,118

17-Jan-2010

20:53

Not Applicable

Rasapi-repl.man

Not Applicable

5,698

17-Jan-2010

20:53

Not Applicable

Rasbase-rassstp-repl.man

Not Applicable

3,507

17-Jan-2010

20:53

Not Applicable

Rasbase-repl.man

Not Applicable

5,933

17-Jan-2010

20:53

Not Applicable

Rasddm-repl.man

Not Applicable

2,513

17-Jan-2010

20:53

Not Applicable

Rasmanservice-dl.man

Not Applicable

1,704

17-Jan-2010

20:53

Not Applicable

Rasmanservice-repl.man

Not Applicable

2,232

17-Jan-2010

20:53

Not Applicable

Rasmigplugin-dl-mig.dll

7.2.7600.20776

217,088

10-Aug-2010

05:19

x64

Rasmigplugin-mig.dll

7.2.7600.20776

217,088

10-Aug-2010

05:19

x64

Rasmigplugin.dll

7.2.7600.20776

217,088

10-Aug-2010

05:19

x64

Rasppp-repl.man

Not Applicable

2,825

17-Jan-2010

20:53

Not Applicable

Rasrqs-repl.man

Not Applicable

1,792

17-Jan-2010

20:53

Not Applicable

Rasserver-repl.man

Not Applicable

25,449

17-Jan-2010

20:53

Not Applicable

Rasservermigplugin-dl.man

Not Applicable

16,174

17-Jan-2010

20:53

Not Applicable

Rasserveroc-dl.man

Not Applicable

1,659

17-Jan-2010

20:53

Not Applicable

Iprtrmgr.dll

6.1.7600.20776

271,360

10-Aug-2010

04:27

x86

Pbkmigr-mig.dll

7.2.7600.20776

67,584

10-Aug-2010

04:29

x86

Rasapi-dl.man

Not Applicable

2,118

17-Jan-2010

20:54

Not Applicable

Rasapi-repl.man

Not Applicable

5,698

17-Jan-2010

20:54

Not Applicable

Rasbase-rassstp-repl.man

Not Applicable

3,507

17-Jan-2010

20:54

Not Applicable

Rasbase-repl.man

Not Applicable

5,933

17-Jan-2010

20:54

Not Applicable

Rasddm-repl.man

Not Applicable

2,513

17-Jan-2010

20:54

Not Applicable

Rasmanservice-dl.man

Not Applicable

1,704

17-Jan-2010

20:54

Not Applicable

Rasmanservice-repl.man

Not Applicable

2,232

17-Jan-2010

20:54

Not Applicable

Rasmigplugin-dl-mig.dll

7.2.7600.20776

172,544

10-Aug-2010

04:29

x86

Rasmigplugin-mig.dll

7.2.7600.20776

172,544

10-Aug-2010

04:29

x86

Rasmigplugin.dll

7.2.7600.20776

172,544

10-Aug-2010

04:29

x86

Rasppp-repl.man

Not Applicable

2,825

17-Jan-2010

20:54

Not Applicable

Rasrqs-repl.man

Not Applicable

1,792

17-Jan-2010

20:54

Not Applicable

Rasserver-repl.man

Not Applicable

25,449

17-Jan-2010

20:54

Not Applicable

Rasservermigplugin-dl.man

Not Applicable

16,174

17-Jan-2010

20:54

Not Applicable

Rasserveroc-dl.man

Not Applicable

1,659

17-Jan-2010

20:54

Not Applicable

For all supported IA-64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Iprtrmgr.dll

6.1.7600.20776

591,360

10-Aug-2010

04:03

IA-64

Pbkmigr-mig.dll

7.2.7600.20776

127,488

10-Aug-2010

04:06

IA-64

Rasapi-dl.man

Not Applicable

2,118

17-Jan-2010

20:53

Not Applicable

Rasapi-repl.man

Not Applicable

5,698

17-Jan-2010

20:53

Not Applicable

Rasbase-rassstp-repl.man

Not Applicable

3,507

17-Jan-2010

20:53

Not Applicable

Rasbase-repl.man

Not Applicable

5,933

17-Jan-2010

20:53

Not Applicable

Rasddm-repl.man

Not Applicable

2,513

17-Jan-2010

20:53

Not Applicable

Rasmanservice-dl.man

Not Applicable

1,704

17-Jan-2010

20:53

Not Applicable

Rasmanservice-repl.man

Not Applicable

2,232

17-Jan-2010

20:53

Not Applicable

Rasmigplugin-dl-mig.dll

7.2.7600.20776

387,072

10-Aug-2010

04:06

IA-64

Rasmigplugin-mig.dll

7.2.7600.20776

387,072

10-Aug-2010

04:06

IA-64

Rasmigplugin.dll

7.2.7600.20776

387,072

10-Aug-2010

04:06

IA-64

Rasppp-repl.man

Not Applicable

2,825

17-Jan-2010

20:53

Not Applicable

Rasrqs-repl.man

Not Applicable

1,792

17-Jan-2010

20:53

Not Applicable

Rasserver-repl.man

Not Applicable

25,449

17-Jan-2010

20:53

Not Applicable

Rasservermigplugin-dl.man

Not Applicable

16,174

17-Jan-2010

20:53

Not Applicable

Rasserveroc-dl.man

Not Applicable

1,659

17-Jan-2010

20:53

Not Applicable

Iprtrmgr.dll

6.1.7600.20776

271,360

10-Aug-2010

04:27

x86

Pbkmigr-mig.dll

7.2.7600.20776

67,584

10-Aug-2010

04:29

x86

Rasapi-dl.man

Not Applicable

2,118

17-Jan-2010

20:54

Not Applicable

Rasapi-repl.man

Not Applicable

5,698

17-Jan-2010

20:54

Not Applicable

Rasbase-rassstp-repl.man

Not Applicable

3,507

17-Jan-2010

20:54

Not Applicable

Rasbase-repl.man

Not Applicable

5,933

17-Jan-2010

20:54

Not Applicable

Rasddm-repl.man

Not Applicable

2,513

17-Jan-2010

20:54

Not Applicable

Rasmanservice-dl.man

Not Applicable

1,704

17-Jan-2010

20:54

Not Applicable

Rasmanservice-repl.man

Not Applicable

2,232

17-Jan-2010

20:54

Not Applicable

Rasmigplugin-dl-mig.dll

7.2.7600.20776

172,544

10-Aug-2010

04:29

x86

Rasmigplugin-mig.dll

7.2.7600.20776

172,544

10-Aug-2010

04:29

x86

Rasmigplugin.dll

7.2.7600.20776

172,544

10-Aug-2010

04:29

x86

Rasppp-repl.man

Not Applicable

2,825

17-Jan-2010

20:54

Not Applicable

Rasrqs-repl.man

Not Applicable

1,792

17-Jan-2010

20:54

Not Applicable

Rasserver-repl.man

Not Applicable

25,449

17-Jan-2010

20:54

Not Applicable

Rasservermigplugin-dl.man

Not Applicable

16,174

17-Jan-2010

20:54

Not Applicable

Rasserveroc-dl.man

Not Applicable

1,659

17-Jan-2010

20:54

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, 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 x86-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

Package_for_kb973572_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,425

17-Jul-2009

05:01

Not Applicable

Package_for_kb973572_server_1~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,364

17-Jul-2009

05:01

Not Applicable

Package_for_kb973572_server~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,713

17-Jul-2009

05:01

Not Applicable

X86_microsoft-windows-rasserver_31bf3856ad364e35_6.0.6001.22473_none_abea2d3e812087ea.manifest

Not Applicable

72,213

16-Jul-2009

17:56

Not Applicable

X86_microsoft-windows-rasserver_31bf3856ad364e35_6.0.6002.22175_none_add29fba7e450fbc.manifest

Not Applicable

72,213

16-Jul-2009

17:35

Not Applicable

Additional files for all supported x64-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

Amd64_microsoft-windows-rasserver_31bf3856ad364e35_6.0.6001.22473_none_0808c8c2397df920.manifest

Not Applicable

72,275

16-Jul-2009

18:18

Not Applicable

Amd64_microsoft-windows-rasserver_31bf3856ad364e35_6.0.6002.22175_none_09f13b3e36a280f2.manifest

Not Applicable

72,275

16-Jul-2009

17:34

Not Applicable

Package_for_kb973572_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,433

17-Jul-2009

05:01

Not Applicable

Package_for_kb973572_server_1~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,372

17-Jul-2009

05:01

Not Applicable

Package_for_kb973572_server~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,723

17-Jul-2009

05:01

Not Applicable

Wow64_microsoft-windows-rasserver_31bf3856ad364e35_6.0.6001.22473_none_125d73146ddebb1b.manifest

Not Applicable

72,058

16-Jul-2009

17:50

Not Applicable

Wow64_microsoft-windows-rasserver_31bf3856ad364e35_6.0.6002.22175_none_1445e5906b0342ed.manifest

Not Applicable

72,058

16-Jul-2009

17:29

Not Applicable

Additional file information for Windows Server 2008 R2

Additional files for all supported x64-based versions of Windows Server 2008 R2

File name

Amd64_ba2f5405af5c268afa9625d78e8f3214_31bf3856ad364e35_6.1.7600.20776_none_2e885750d826de67.manifest

File version

Not Applicable

File size

1,044

Date (UTC)

10-Aug-2010

Time (UTC)

08:32

Platform

Not Applicable

File name

Amd64_microsoft-windows-rasserver_31bf3856ad364e35_6.1.7600.20776_none_08339db19a927c5b.manifest

File version

Not Applicable

File size

99,296

Date (UTC)

10-Aug-2010

Time (UTC)

08:41

Platform

Not Applicable

File name

Package_1_for_kb973572~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

2,047

Date (UTC)

10-Aug-2010

Time (UTC)

08:32

Platform

Not Applicable

File name

Package_2_for_kb973572~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

2,010

Date (UTC)

10-Aug-2010

Time (UTC)

08:32

Platform

Not Applicable

File name

Package_for_kb973572_rtm~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

1,927

Date (UTC)

10-Aug-2010

Time (UTC)

08:32

Platform

Not Applicable

File name

Wow64_microsoft-windows-rasserver_31bf3856ad364e35_6.1.7600.20776_none_12884803cef33e56.manifest

File version

Not Applicable

File size

93,313

Date (UTC)

10-Aug-2010

Time (UTC)

08:41

Platform

Not Applicable

Additional files for all supported IA-64-based versions of Windows Server 2008 R2

File name

Ia64_bf2ced6a84f8e22cd4f4d7fbbb1d5d3a_31bf3856ad364e35_6.1.7600.20776_none_7924be4ed185bd05.manifest

File version

Not Applicable

File size

1,042

Date (UTC)

10-Aug-2010

Time (UTC)

08:32

Platform

Not Applicable

File name

Ia64_microsoft-windows-rasserver_31bf3856ad364e35_6.1.7600.20776_none_ac16a623e2331421.manifest

File version

Not Applicable

File size

99,293

Date (UTC)

10-Aug-2010

Time (UTC)

08:32

Platform

Not Applicable

File name

Package_1_for_kb973572~31bf3856ad364e35~ia64~~6.1.1.0.mum

File version

Not Applicable

File size

2,042

Date (UTC)

10-Aug-2010

Time (UTC)

08:32

Platform

Not Applicable

File name

Package_for_kb973572_rtm~31bf3856ad364e35~ia64~~6.1.1.0.mum

File version

Not Applicable

File size

1,462

Date (UTC)

10-Aug-2010

Time (UTC)

08:32

Platform

Not Applicable

File name

Wow64_microsoft-windows-rasserver_31bf3856ad364e35_6.1.7600.20776_none_12884803cef33e56.manifest

File version

Not Applicable

File size

93,313

Date (UTC)

10-Aug-2010

Time (UTC)

08:32

Platform

Not Applicable

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