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Speed up Bitcomet and uTorrent -Easy and Effective
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Fri Aug 10, 2007 7:32 pm Reply and quote this post
You can raise the maximum amount of half-open tcp connections to speed up your torrents. On itself this is a great trick, however I recently discovered that 90% off all people use the default settings on their client, and that’s a problem.

Both Bitcomet and uTorrent (and probably other clients) limit half-open tcp connections by default. This means even if you hack the max half-open tcp connections in windows xp, your speed will still be limited.

So this is what you need to do:

First of all, read this post that gives you some tips and tricks how to speed up your torrents

1. Hack the max half-open TCP connections
If you’re on XP sp2, your TCP connections are limited to a maximum of 10. This seriously hurts your downloading speed because it wont let you connect to a high amount of ip numbers. It is supposed to slow down viruses because their spreading strategy is to connect to a high amount of ip numbers, but it also cripples your torrent downloads.

A nice way to fix this is to download this patch, it allows you to set the maximum allowed connections to any number you want. Any number between 50 and 100 is ok (more is NOT always better).

http://torrentfreak.com/evid4226patch223d-enzip/

2. Configure your torrent client to allow 50-100 max half-open TCP connections

uTorrent: Options > Preferences > Advanced options > net.max_halfopen

Bitcomet: Options > Preferences > Connection > max half-open TCP

Now you’re ready to go…

A third point of interest is that some “windows updates” revert your tweaked tcp connections back to 10. So it’s wise to check this every now and then. You can check this by going to (in windows xp) Start >; Control Panel > Administrative Tools > Event Viewer > System… Look for event 4226 (sort by event).

If there are a lot of daily occurences it’s likely that the max amount of half-open tcp connections was set back to 10. Or you’re infected with some nasty spyware…

If you’re done, you might want to try the torrent settings optimizer to check if all setting are correct

Contributed by Editorial Team, Executive Management Team
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