SYMPTOMS
On a computer that is running Microsoft Windows Server 2003 with Service Pack 1 (SP1), you may experience poor performance when you use certain programs that transmit data over TCP/IP connections.
You experience this problem if the following conditions are true:
- The program transmits small data packets. Generally, these are packets that are 50 bytes or less.
- The transmitted data packets experience a round trip time of over 100 milliseconds (ms).
- Some of the transmitted TCP packets are dropped by a network device, such as a router or a switch.
In this situation, the Windows Server 2003 SP1 TCP/IP driver (Tcpip.sys) may take longer than expected to recover from the packet loss.
RESOLUTION
Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.
To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
Prerequisites
Because of file dependencies, you must be running Windows Server 2003 with SP1 to apply this hotfix.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
889100
How to obtain the latest service pack for Windows Server 2003
x64-based versions of Windows Server 2003 include SP1.
Restart requirement
This hotfix contains a kernel mode driver. Therefore, 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 2003, x86-based versions
|
| Tcpip.sys | 5.2.3790.2762 | 386,048 | 02-Aug-2006 | 12:41 | x86 |
Windows Server 2003, x64-based versions
|
| Tcpip.sys | 5.2.3790.2762 | 813,056 | 02-Aug-2006 | 19:21 | x64 |
Windows Server 2003, Itanium-based versions
|
| Tcpip.sys | 5.2.3790.2762 | 1,283,584 | 02-Aug-2006 | 19:21 | IA-64 |