Optimize Windows TCP/IP Connection Retransmissions (Windows NT/2000/XP)

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Registry tweaks, tricks & hacks to optimize, enhance and secure Microsoft Windows.

Optimize Windows TCP/IP Connection Retransmissions (Windows NT/2000/XP)
Category: Home > Network > Protocols > TCP-IP

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This parameter determines the number of times TCP will retransmit a connect request (SYN) before aborting the attempt. The retransmission timeout is doubled with each successive retransmission in a given connect attempt.

Open your registry and find the key below.

Create a new DWORD value, or modify the existing value called 'TcpMaxConnectRetransmissions' using the settings below.

Exit your registry, you may need to restart or log out of Windows for the change to take effect.


(Default)	REG_SZ	(value not set)
TcpMaxConnectRetrans...	REG_DWORD	0x00000003 (3)


	HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

Settings:

System Key: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
Name: TcpMaxConnectRetransmissions
Type: REG_DWORD (DWORD Value)
Value: 0 - 0xFFFFFFFF (Default = 3)

Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.

Last Modified: April 3, 2002

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