Article ID: 885267
Article Last Modified on 8/29/2007
APPLIES TO
- Microsoft Windows Server 2003, Standard Edition (32-bit x86)
- Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
- Microsoft Windows Server 2003, Enterprise x64 Edition
- Microsoft Windows XP Professional
SYMPTOMS
In a wireless network environment that uses Internet Protocol security (IPsec) network address translation traversal (NAT-T), client computers that are running Microsoft Windows Server 2003 or Microsoft Windows XP cannot connect to a server that is running Windows Server 2003 and Microsoft Live Communications Server 2003. The connections time out. A network trace shows Internet Control Message Protocol (ICMP) "port unreachable" error messages.
This problem occurs on client computers that use a wireless network adaptor that does not support packet ownership. For example, this problem occurs on client computers that use an Agere Systems wireless network adaptor or an Intel wireless network adaptor that does not support packet ownership.
CAUSE
This problem occurs if the receive path of User Datagram Protocol (UDP)-encapsulated Encapsulating Security Protocol (ESP) packets is incorrectly processed. This condition causes packets to be dropped.
RESOLUTION
Windows Server 2003 hotfix information
A supported hotfix is now 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 this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.
To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:
Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:
Prerequisites
No prerequisites are required.
Restart requirement
You must restart your 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 tool in Control Panel.
Windows Server 2003, 32-bit editions
Date Time Version Size File name ---------------------------------------------------- 09-Sep-2004 16:01 5.2.3790.210 335,360 Tcpip.sys
Windows Server 2003, 64-bit editions
Date Time Version Size File name ---------------------------------------------------- 09-Sep-2004 15:58 5.2.3790.210 973,312 Tcpip.sys
Windows XP hotfix information
A supported hotfix is now 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 this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.
To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:
Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:
Prerequisites
No prerequisites are required.
Restart requirement
You must restart your 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 tool in Control Panel.
Date Time Version Size File name Service pack level -------------------------------------------------------------------------- 21-Sep-2004 23:30 5.1.2600.2523 359,040 Tcpip.sys SP2 21-Sep-2004 23:44 5.1.2600.1593 344,448 Tcpip.sys SP1
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies To" section.
MORE INFORMATION
For additional information about standard terminology that is used to describe Microsoft software updates, 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
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.
Additional query words: w2k3 fix nic natt
Keywords: kbqfe kbhotfixserver kbbug kbfix kbwinserv2003presp1fix KB885267
