Event submitted by Event Log Doctor
Event ID:
4226
Source:
Tcpip

Message:
TCP/IP has reached the security limit imposed on the number of concurrent TCP connect attempts.




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Solution by Event Log Doctor

2005-02-18 17:47:25 UTC

Windows XP with SP2 installed limits the number of simultaneous outgoing TCP connections to slow down the potential spread of worms, viruses etc.. Unfortunately this can also affect scanning and monitoring programs like the EventSentry heartbeat monitor.

For more information on how to change or remove this limit visit http://www.lvllord.de/.


Solution by Event Log Doctor

2007-12-22 15:07:28 UTC

Additionally, you can adjust various aspects of the Windows TCP stack in the following registry key:

HKLM\System\CurrentControlSEt\Services\TCPIP\Parameters

Some of the registry values worth adjusting are:

TcpNumConnections: Maximum number of connections TCP has open at any given time

TcpTimedWaitDelay: Amount of time a connection remains in the TIME_WAIT state

MaxFreeTcbs

You can find out more about these and other related configuration values by searching at http://technet.microsoft.com or your search engine.



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