Speeding Up UTorrent

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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 you 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 ( copy and paste into your search engine, i.e google ) evid4226patch223d-enzip, 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).

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 a up/down speed checkerto check if all setting are correct

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