Thread: Boost UPLOAD Speed in 1 sec(Vista and XP SP3 only)

Reason for slow uploads:
Microsoft has restricted maximum number of concurrent half-open outbound TCP connections (connection attempts) in the Windows system file tcpip.sys.

This limit makes it impossible for Windows systems to have more than 10 concurrent half-open outbound connections. After 10, new connection attempts are put in a queue and forced to wait. Microsoft first introduced this limit in Windows XP SP2 (Service Pack 2) and is present in later versions of Windows. This was done to try to slow the spreading of viruses and malware from system to system and also to reduce the impact of infected systems participating in DoS (Denial of Service) attacks.

Solution: We have to change half open connections to 50 or 100

HOW?: Download a patch that patches tcip.sys. You can find it allover the internet



OR Download Patcher from here: Half-open limit fix (patch) for Windows - Download

You will have to reboot system for this. If you have any doubts regarding this please feel free to ask.

Also above may sound quite technical to you but its damn easy.. You hust go through the link I have given.



source:Half-open limit fix (patch) for Windows - Home

A. Vista SP2 no longer has this restriction.
B. This takes much longer than "1 sec" :laugh:
C. I think everyone already knew this.

I needed to restore tcpip with my xp cd. Didn't work.

looks useful for those DL'ing on windows.. thank God i use a mac for all my downloads, none of this "limiting" bullsh*t lol

I didn't notice this problem is Vista SP2 (as reported) and/or XP SP3, my speeds were quicker in Vista SP2 but not by much. I'm not sure that XP SP3 is as affected as Windows < XP SP3.

A good trick nonetheless though, as there ARE people unaware of these issues. Nice post :)

@ kovinhead:
Dude you are a pro...There are always people who already know about the tutorial when its posted.

Originally Posted by tauren

@ kovinhead:
Dude you are a pro...There are always people who already know about the tutorial when its posted.

maybe he knew cause he bothered to use the search function of the forums and saw that this has already been posted before.