Speed up Bitcomet and uTorrent
Written by Ernesto on December 20, 2005In a previous post we advised to 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).
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 occurrences 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
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416 Responses
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Hyper, I think Foff meant his TCP/IP
I have installed BitComet several times and succeeded in finding torrents, however I can’t get any of them to connect. I created exceptions in the firewall on my computer and still no luck. Any suggestions?
does the patch work for win 98 SE? if not waht can i do ?
thanx a lot
i donwloaded this patch, i have 54.0 mbp speed and i also use bit comet,i’ve changed my tcp connection to like 60 or somthing, and i’m only getting speed like 9 or 10 on average somtimes i get lucky and get 40 or 50 for minimal time. With the speed of my computer i should be getting much faster download speed?… any new advice
why is my bittorrent not opening, thats the best site of all of them, did it shut down?
1. Dont worry about antivirus warnings, the’re expected.
2. You dont need the patch for 98 SE.
3. Patching doesnt garantee faster downloads, u still need lots of sources and upload aswell..
wireracer - if u have a nat router/modem u have to forward your ports.
I’ve a DL-524 router, and even went to the d-link site through admin and changed up in application with port trigger, sent ports and nothin happened , this is getting ridicoulous…
this is realy great!! first i only downloaded at 22kB/s and after the patch, i download at +/- 240 kB. So it’s really it
I’ve tried this and still no improvement. I have XP2 SP2 and my net is ADLS 2MB. This means that my download is 2MB and my upload is 370-390kb/s (don’t know exact number). Can you please tell me what might the problem be ?
By the way my country is Romania. It is in situated in Est Europe. Is the location a problem ?
East Europe is just great for torrenting :) that’s not the problem. Don’t expect miracles though. Try a popular torrent with a good seed peer ratio, and check out this post http://torrentfreak.com/speed-up-your-torrents-ii/
hope that helps
will this make a difference if im already dwnloading at around 500kbp/s anyway??
When using BitComet, my browsing stops after a while, despite reducing down/up load speeds! I am part of a network, where sometimes download speeds of over 200 are reality. Any suggestions?
hi
i installed the patch and i change the max-half openTCP and still nothing change…i need help..any suggestion..i am using a linksys BEFSR41 router btw.
swt
not only increase the max-half open TCP can increase..u also need to close the firewall and other stuff
dude,
worked awesome! thanks!
Hey,
I got a 54mbps internet, but only get a download speed below 20kbps. Any Ideas??
i did a broadband test i have a 569 kb upload speed, my bit comet only downloads at 10 to 20.. i need help please…!
After installing this “patch” I noticed that my computer is trying to connect to random IP’s even if I have no programs running. There not the IP’s for windows time update and such. They are trying to connect to private IP’s… this patch is a virus I think?
good!
@ OpenSource
This patch just tweaks the tcpip.sys file and is absolutely NOT a virus
How do i change use the patch? I keep getting winrar opening up my directory!!! i have no idea what to do!
the patch is rarred. use winrar to extract it somewhere, then open the extracted folder and run the patch
i see no differences in my downloads
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