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 :)
FOR MORE , VISIT HERE: WWW.FREEINTERNETTRICK.CO.CC
Showing posts with label dsl. Show all posts
Showing posts with label dsl. Show all posts
Friday, February 26, 2010
Optimize Broadband & Dsl Connections and increase your internet speed
These settings allow you to boost the speed of your broadband Internet connection when using a Cable Modem or DSL Router with Windows 2000 and Windows XP.
Open your registry and find the key below.
Create the following DWORD values, as most of these values will not already exist you will need to create them by clicking on ‘Edit -> New -> DWORD Value’ and then set the value as shown below.
DefaultTTL = “80″ hex (or 128 decimal)
Specifies the default time to live (TTL) for TCP/IP packets. The default is 32.
EnablePMTUBHDetect = “0″
Specifies whether the stack will attempt to detect Maximum Transmission Unit (MTU) routers that do not send back ICMP fragmentation-needed messages. The default is 0.
EnablePMTUDiscovery = “1″
Specifies whether the TCP/IP stack will attempt to perform path MTU discovery as specified in RFC 1191. The default is 1.
GlobalMaxTcpWindowSize = “7FFF” hex (or 32767 decimal)
Specifies the system maximum receive window size advertised by the TCP/IP stack.
TcpMaxDupAcks = “2″
Determines the number of duplicate ACKs that must be received for the same sequence number of sent data before “fast retransmit” is triggered.
SackOpts = “1″
Enables support for selective acknowledgements as documented by Request for Comment (RFC) 2018. Default is 0.
Tcp1323Opts = “1″
Controls RFC 1323 time stamps and window scaling options. Possible values are: “0″ = disable RFC 1323 options, “1″ = window scale enabled only, “2″ = time stamps enabled only and “3″ = both options enabled.
TcpWindowSize = “7FFF” hex (or 32767 decimal)
Specifies the receive window size advertised by the TCP/IP stack. If you have a latent network you can try increasing the value to 93440, 186880, or 372300.
Exit your registry and restart Windows for the changes to take effect.
If you don’t want to edit the registry, here’s a little TCP utility that is ideal…
http://www.broadbandreports.com/front/doctorping.zip
FOR MORE , VISIT HERE: WWW.FREEINTERNETTRICK.CO.CC
Open your registry and find the key below.
Create the following DWORD values, as most of these values will not already exist you will need to create them by clicking on ‘Edit -> New -> DWORD Value’ and then set the value as shown below.
DefaultTTL = “80″ hex (or 128 decimal)
Specifies the default time to live (TTL) for TCP/IP packets. The default is 32.
EnablePMTUBHDetect = “0″
Specifies whether the stack will attempt to detect Maximum Transmission Unit (MTU) routers that do not send back ICMP fragmentation-needed messages. The default is 0.
EnablePMTUDiscovery = “1″
Specifies whether the TCP/IP stack will attempt to perform path MTU discovery as specified in RFC 1191. The default is 1.
GlobalMaxTcpWindowSize = “7FFF” hex (or 32767 decimal)
Specifies the system maximum receive window size advertised by the TCP/IP stack.
TcpMaxDupAcks = “2″
Determines the number of duplicate ACKs that must be received for the same sequence number of sent data before “fast retransmit” is triggered.
SackOpts = “1″
Enables support for selective acknowledgements as documented by Request for Comment (RFC) 2018. Default is 0.
Tcp1323Opts = “1″
Controls RFC 1323 time stamps and window scaling options. Possible values are: “0″ = disable RFC 1323 options, “1″ = window scale enabled only, “2″ = time stamps enabled only and “3″ = both options enabled.
TcpWindowSize = “7FFF” hex (or 32767 decimal)
Specifies the receive window size advertised by the TCP/IP stack. If you have a latent network you can try increasing the value to 93440, 186880, or 372300.
Exit your registry and restart Windows for the changes to take effect.
If you don’t want to edit the registry, here’s a little TCP utility that is ideal…
http://www.broadbandreports.com/front/doctorping.zip
FOR MORE , VISIT HERE: WWW.FREEINTERNETTRICK.CO.CC
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