How to adjust your Window XP TCP Connection to boost your BT download speed?

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adjust tcp connection, tcp, tcp ip, tcp ip connection, bt, bt download, window xp, window, microsoft xp
By default what’s the maximum number of TCP Connection ?
With the release of Microsoft Windows XP Service Pack 2 (SP2), it has limit the concurrent TCP connection to 10 connection per seconds.

With Service Pack 1 or without any service pack installed, your computer has no limit on the number of concurrent TCP connection.

Why Microsoft Windows Service Pack 2 (SP2) want to limit the number of TCP connection?
This is to reduce the speed of computer virus or worms spreading across the network.

How it affect the BT download speed?
BT tend to open a lot of outbound TCP connection at one time to download from different sources. With only 10 connection per second, it might reduce the BT download speed.

How do i know if my computer has reach the maximum TCP connection?
To know if you’re hitting concurrent TCP connection attempts limit, Go to Control Panel -> Administrative Tools -> Event Viewer -> System, look for TCP/IP warning “TCP/IP has reached the security limit imposed on the number of concurrent TCP connect attempts”. It has the Event ID of 4226

How to adjust my Window XP TCP Connection to boost my BT download speed?
Just change the 10 tcp connection limit to 10,000. To change the limit on TCP connection in Windows XP SP2, you can use the following program that works on every language of Windows XP:-

Event ID 4226 Patcher version 2.23d
Website: http://www.lvllord.de/

You might want to back up the tcpip.sys, although the program has the ability to restore tcpip.sys to original state.

Once you change your TCP Connection number, restart the PC and now your BT download speed will be more better :)

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16 Responses to “How to adjust your Window XP TCP Connection to boost your BT download speed?”

  1. Gustof says:

    Thank you I wos looking for this patch fo a ling time :)

  2. chua says:

    Shahbaz: just ignore the system restore. choose to use the custom tcpip.sys, it should be all right

  3. SHAHBAZ says:

    hey guyss!!!!!!!!!!!!!!!
    i downloaded the program it run in DOS. i changed from 50 to 200 it did nt icrease download speed but an error happened to enod32 . windows asked for system restore , w2hat should i do???????? help!!!!!!!!!!

  4. [...] to contact your internet provider and ask them to open a port on your router… you can also go to How to adjust your Window XP TCP Connection to boost your BT download speed? – Techie Corner there you have some instructions on how you can get better speed on your torrent dl?s … and I [...]

  5. sankalp says:

    hey guys i am not able to install the patch.
    pls pls help me out.

  6. sogua says:

    Ted: if your default connection number is 10 and you start a BT download, this is going to result you are not able to browse internet or the speed of your browsing will be terribly slow. This is because you have not enough connection to communicate. Yes, some of the modern BT client has the fix but not all. And the theory behind the fix is the same as wat i posted – changed the amount of half open connection.

  7. Ted says:

    This is not needed, it only limits the amount of half open connections you can have at any one time. It will at most slow down your download with 2-3 sec. And thats only for torrents normal http/ftp or any other sigel source downloads will not be affected. Most modern client got a built in fix for a long time. This wont increas your downalod speed.

  8. chua says:

    tcp connection can exceed 100.
    the reason why many people say it should stay below 100 is because they do not want to let virus or malware to utilize the connection to send spam.

    If you PC is clean enough, you don’t have to worry.

    BTW, in Mac OS X we do not need to tune this settings as Mac doesn’t limit the tcp connections and it allow all the connection.

  9. Ed says:

    What are the security risks??
    Hunk says 100 not 10000 which one is right?

  10. [...] to contact your internet provider and ask them to open a port on your router… you can also go to How to adjust your Window XP TCP Connection to boost your BT download speed? – Techie Corner there you have some instructions on how you can get better speed on your torrent dls … and I [...]

  11. hunk says:

    it definately works..but remember to reboot your system!!!!!
    also notice that the tcp connetions should not exceed 100!!!!!!!!!

  12. [...] How to adjust your Window XP TCP Connection to boost your BT download speed? – Techie Corner be sure to set the new limit to <100   #10     [...]

  13. [...] How to adjust your Window XP TCP Connection to boost your BT download speed? – Techie Corner be sure to set the new limit to [...]

  14. [...] you go, How to adjust your Window XP TCP Connection to boost your BT download speed? – Techie Corner [...]

  15. ismaizaz says:

    This is very useful.Great

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