Comments on: Windows XP SP2 and Event ID 4226

By: Dautic

Dautic — Fri, 11 Jan 2013 12:32:52 +0000

I had to patch the tcpip.sys file, I’ve changed from 10 to 256, and the 4226 event is now no longer appear. Thanks

By: 0ldm@n

0ldm@n — Sun, 09 Mar 2008 23:46:51 +0000

Ive downloaded this fix (im using azure as my torrent) however for some reason when i run the .exe nothing happens?? ive tried it in the systems32/drivers folder and still nothing happens.
I have gotten the 4226 errors and am wondering what can i do…

By: Xtina

Xtina — Sat, 01 Mar 2008 06:45:53 +0000

Hello David!
I installed the patch and set it to 100. Unfortunately, download speed remained constant before and after installing the patch (at around the measly rate of 41 kbps). What can I do to speed it up?

By: bill

bill — Wed, 20 Feb 2008 18:36:39 +0000

I am asking in general… an actual windows xp installation with all updates until today.. this patch works with zero problems? I had an Intranet and i need the most reliable tcpip connection. Thanks in advance.

David says:
Yes it will work on an up to date Windows XP system.
There have been a few updates to the TCPIP.SYS over the last few years that have restored the the half-open tcp/ip connections back to 10 but running the patch again has always helped increasing the half open connections to what ever value you decide your system needs to run efficiently.

By: bill

bill — Mon, 18 Feb 2008 19:59:42 +0000

The patch still works today? because of the new Microsoft updates… Thanks in advance.

David says:
How recent Microsoft updates are you talking about? Can you give KB (knowledge base) numbers?

By: Omar

Omar — Mon, 18 Feb 2008 14:27:29 +0000

hey i downloaded the patch and it seems that its slowing down my torrent download…so plz can you help me and tell me how to remove the patch….thx

David says:
The patch will not be slowing down your downloads. It is likely your router that struggles with the high load of connections.
How many connections did you enable? You should not need more than 100-200.
Have you capped your upload to 80% of your available upload bandwidth?
The patch back-ups your original TCPIP.SYS to the following location: C:\WINDOWS\system32\drivers\TCPIP.SYS.ORIGINAL.
It should be a matter of deleting TCPIP.SYS and renaming TCPIP.SYS.ORIGINAL to TCPIP.SYS.

By: Ned Work

Ned Work — Sun, 20 Jan 2008 03:30:17 +0000

This isn’t a “Microsoft should fix the problem and not the symptom issue”
This is a a failure by design of TCPIP. Unlimited syns (syn, syn-ack, ack) are legitmate DOS’es and have been known about long before Windows.
Unpatch your stack. But don’t cry when your system is crawling due to tens of thousands of half open connections.

By: PeterD23

PeterD23 — Tue, 08 Jan 2008 16:50:15 +0000

I got the 4226 warning a few days before i installed the patch, do you know why? I’m afraid i may get infected, how can i be sure this wont break my computer? I have XoftSpySE, AVG Free, and Windows Defender

By: H8ff0000

H8ff0000 — Thu, 20 Dec 2007 09:37:20 +0000

Hey, I’ve used this patch before no problem. Recently did a reinstall, and for some reason, I can’t run the patch. It just won’t open. I’ve checked my processes and such, nothing there. Any help?

By: thatguy

thatguy — Sat, 08 Dec 2007 02:29:29 +0000

hey great info guys. Im doing a system scan before I install the patch and Ive had it with my bitlord d/l and such being so crappy…Ill install and hope to give some feed back