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This FAQ is not yet complete nor up-to-date. This will be changed sometime ...
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What's this EventID 4226?
The EventID 4226 means, that there are to many concurrent TCP connection attempts.
A connection attemp is a query to a computer, if it accept the TCP
connection or not. If the computer is for example no more existent, it
will be waited for a few seconds, until a timeout occurs and the
connection attemp get canceled.
Since XP SP2 there are only 10 concurrent TCP connection attempts possible,
while in SP1 it has not been limited. |
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Which
effects does this limit have?
Applications with many connection attemps may work
bad or not at all. Even web browsers, eMail clients or antivir programs
can be affected and might bring a long time of waiting.
Also administrative diagnosticprograms in companies make problem. In short,
there seems to be more problems than there is an advantage. |
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How can I
find out, if I'm affected?
Just have a look at Start/Maintenance/Control
Panel/Administration Management/Eventview/System if there are entries with
the event id 4226. If yes, minimum one time the limit has been reached |
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I read
something, that it's possible to change limit via registry (TcpNumConnections). Is that
true?
Unfortunately not. Because the concurrent connection
attemp limit has nothing to with concurrent connections, this registry-key
is useless. Unfortunately there is no registry-key, which would allow the
user to change the concurrent connection attemps. |
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50
concurrent, half-open connections is to less for me. Is it possible
to get more?
Yes! Just use as a Parameter /L=limit, where limit
describes the new limit.
For example a 100 limit can be set with the command:
EvID4226Patch /L=100 |
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Which other
parameters does exist?
Not entered yet ... |
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Which
languages are supported?
Theoretical every lange is supported. If not, please
contact me! |
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I have
Windows 95/98/ME/2000/XP SP1. Will these get supported soon, too?
Because the limit got introducted in XP SP2, the
other operating systems are currently unlimited.
Exception: Windows 2003 Server seems to be limited as well since SP1 beta.
An update will follow ... |
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