Update to turn off SNP features for Windows Server 2003 and Windows SBS 2003

To work around this problem, use any of the following three methods. You must restart the computer after you try any of these methods.

Method 1: Manually disable Receive Side Scaling and TCP Offload in the network adapter driver

To manually disable RSS and TCP Offload in the network adapter driver, follow these steps:

1. Click Start, and then click Run.
2. Type the following command, and then click OK:
   
   ncpa.cpl
   
3. Right-click a network adapter object, and then click
   Properties.
   
   
4. Click Configure, and then click the
   Advanced tab.
   
   
5. In the Property list, click
   Receive Side Scaling, click Disable in the
   Value list, and then click OK.
   
   
6. In the Property list, click TCP/IP Offload, click Disable in the Valuelist, and then click OK.
7. Repeat steps 2 through 5 for each network adapter object.

Method 2: Update the network adapter drivers

To see whether an updated network adapter driver is available, contact the network adapter manufacturer or the original equipment manager (OEM) for the computer. The driver must meet Network Driver Interface Specification (NDIS) 5.2 or a later version of this specification.

For information about how to contact computer program manufacturers, go to the following Microsoft website:

http://support.microsoft.com/gp/vendors

Method 3: Manually disable RSS and TCP Offload in the registry

To have us do this for you, go to the "Fix it for me" section. If you would rather do this yourself, go to the "Let me fix it myself" section.

Fix it for me

To disable RSS and TCP Offload in the registry automatically, click the Fix this problem link. Then click Run in the File Download dialog box, and follow the steps in this wizard.

Note this wizard may be in English only. However, the automatic fix also works for other language versions of Windows. 

Note If you are not on the computer that has the problem, you can save the automatic fix to a flash drive or to a CD. Then you can run the automatic fix on the computer that has the problem. 

Now go to the "Did this fix the problem?" section.

Let me fix it myself

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:

322756 How to back up and restore the registry in Windows

To manually disable RSS and TCP Offload, follow these steps:

1. Click Start, click Run.
2. Type the following command in the Open, and then click OK:
   regedit
   
   
3. Locate the following registry subkey:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
   
   
4. Right-click EnableTCPChimney, and then click Modify.
5. In the Value data box, type
   0, and then click OK.
6. Right-click EnableRSS, and then click
   Modify.
7. In the Value data box, type
   0, and then click OK.
8. Right-click EnableTCPA, and then click
   Modify.
9. In the Value data box, type
   0, and then click OK.
10. Exit Registry Editor, and then restart the computer.

If you set the value of the EnableTCPChimney registry entry to 1, the TCP Chimney functionality is enabled. Similarly, if you set the values of the EnableRSS and EnableTCPA registry entries to 1, the RSS functionality and the TCPA functionality are enabled.