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
Adjusting the following TCP/IP setting by adding a subkey in the registryshould reduce the number of timeouts by allowing more time for theconnection to complete. This setting is not present in the registry bydefault.
Start Registry Editor (Regedt32.exe) and go tothe following subkey:
On the Edit menu, click Add Value, and then add the following information:
Value Name: TcpMaxDataRetransmissions Value Type: REG_DWORD - Number Valid Range: 0 - 0xFFFFFFFF Default Value: 5 Decimal New Value: 10 Decimal
Click OK, and then quit Registry Editor.
Reboot after registry change has been made.
Did this fix the problem?
Check whether the problem is fixed. If the problem is fixed, you are finished with this article. If the problem is not fixed, you can contact support.
The TcpMaxDataRetransmissions parameter controls the number of times TCPretransmits an individual data segment (non connect segment) before endingthe connection. The retransmission timeout is doubled with each successiveretransmission on a connection. It is reset when responses resume. Thebasetimeout value is dynamically determined by the measured round-trip time onthe connection.
The Default Value for this registry entry is 5; double this value to 10(Decimal) (see step 2 above). If connection timeouts still occur, trydoubling the value again to 20 (Decimal).
Note This registry entry may only reduce the number of connection timeouterrors that occur. Changes to your Internet connection or router may haveto be made to completely resolve the problem.
Microsoft Proxy Server 1.0 Standard Edition, Microsoft Internet Security and Acceleration Server 2000 Standard Edition, Microsoft Internet Security and Acceleration Server 2004 Enterprise Edition, Microsoft Internet Security and Acceleration Server 2004 Standard Edition, Microsoft Internet Security and Acceleration Server 2006 Enterprise Edition, Microsoft Internet Security and Acceleration Server 2006 Standard Edition