Speed up Bitcomet and uTorrent

Written by Ernesto on December 20, 2005 

In 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

Update: this tweak is NOT recommended if you use uTorrent >1.7, it may lead to unstable behavior.

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

tcputorrent

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

tcpbitcomet

Now you’re ready to go…

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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).

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

If you don't like torrents try MP3 Fiesta. They hold nearly 67,000 albums from nearly 17,000 artists. Prices are around the $0.10 mark for single tracks with full albums coming in at roughly $1.00. Tracks are available from 192kbps and they take major credit cards and PayPal

Previously: Torrent site for sale on Ebay

Next: Unwanted torrents

416 Responses

Pages: « 1 … 6 7 8 9 10 [11] 12 13 14 15 16 … 17 » Show All

251 Feb 18, 2007 at 05:06 by Jeff

just occured to me that there are a lot more questions than answers here. guess i’ll look elsewhere……..btw…as stated above, my tcp is showing as 0 but still get 300 - 500 kb/s. just can’t download more than one file @ a time. probably won’t check back here but if anyone has an answer to this (probably) simple problem email me @ janders87@hotmail.com. thanx

252 Feb 18, 2007 at 12:55 by mary

“Welcome to use BitComet new feature - Media File Preview. If your download speed is above 200K, the play will start in about 1 minute, and it will take about 3-5 minutes if your download speed is around 100k. Thank you for your support! ” I do not what i can do i want watch films but …

253 Feb 22, 2007 at 08:36 by cat

I have a big problem…..with 0.84 edition. my download speed was 300-600k but now is 3k some-times 0k and shown out this message. “”your listen port is unreachable to public domain peer’s please check your firewall and NAT router configurations”" if anyone has an answer to this pls email to c2006f@hotmail.com thanx.

254 Feb 28, 2007 at 00:23 by nIXn

it really seems to work O_o the virus warning is scary tho

255 Feb 28, 2007 at 00:56 by Kal-El

yo this is the best no virus wat so ever and tweaked it, i was on 0-15kbs now im gettn 150 which im happy wit!

256 Feb 28, 2007 at 16:14 by the head

wat a crock of shit tryed it put it back to normal on utorrent.an it works better

257 Mar 13, 2007 at 18:03 by big cat

I have a problem…..with 0.84 edition too. my download speed was 30-100 but now is 0k and shown out this message. “”your listen port is unreachable to public domain peer’s please check your firewall and NAT router configurations”” if anyone has an answer to this pls email to dns789@yahoo.com thanks.

258 Mar 14, 2007 at 18:01 by Dc

Well i did most of everything you said to do to speed up bitcomet( i have 0.86) andi’m still geting barrly any to no download. the most i have gotten is 116 kb/s, but usually i only get 1-20 and my setings are turned up. i have wind xp. please help. disstilldeath@yahoo.com

259 Mar 15, 2007 at 00:36 by Bushido

It increased my Upload speed not download speed. Lol

260 Mar 17, 2007 at 13:16 by jame king

cool i went to 111kb, that was a 1st.

how to reset to normal dl, befre i hcanged it?

261 Mar 22, 2007 at 05:04 by joe morgan

i have a question about uploading. if i upload a lot will it increase my download rate for bitcomet?

262 Mar 30, 2007 at 23:04 by mitch

Hey all, When I try and open the patch it just gives me an error and alerts me to this having spywear. Ive had the same problem happen with a few serial keygens. Im running AVG internet security and even when I shut this down it still doesnt execute.

Any ideas whats going on?

Thanks

263 Mar 31, 2007 at 02:51 by Ash

This really works , thanks mate for this information, i were getting around 40/kbs now i get 120/kbs

Thanks!!

264 Mar 31, 2007 at 16:18 by mcolnahek

Woohoo! After tweaking my settings and running the patch, my downloadspeed went from 80kB/s to 250 kB/s! Thank you!!

265 Apr 01, 2007 at 01:16 by Ash

Right the other day it was wroking fine now back to normal , i made sure that the tcp didnt change nad it hasnt any advice

266 Apr 03, 2007 at 10:34 by Me

dumbasses. you dont even need to download a patch to change that setting, you can do it in options noobs. not that it matters anyway it does 5/8th of f*** all anyway

267 Apr 06, 2007 at 18:36 by shaj

i downloaded a torent file(1.8 gb)
94.2%, but i can’t complete fully

268 Apr 08, 2007 at 07:07 by Rayner

Thanks alot guys, this thing really worked, I thought that this article was mad in hyper space… but it worked great for my connection

269 Apr 09, 2007 at 23:28 by yhgdj

I’m connected to over 30 fucking peers and my speeds are still shit. I changed everything that the guide said to change. My internet speed is 575 kB/s download and 150 kB/s upload.

I’m getting less than 20 kB/s on C&C3, its a new torrent with a shit load of seeders and my speeds are still crap.

Any help would be much appreciated, I’m fed up with these shitty ass speeds.

270 Apr 19, 2007 at 17:57 by Max

i cand download the file:(..can someone help me ?

271 Apr 22, 2007 at 03:16 by autumnleaf

how would this actually help me?

my avg. speed is ~250 kbs; max speed i get is ~400-500 kbs. and i connect to ~200 peers atm. i use utorrent and already set up a static ip.

would doing this still help my dl speed and if so any idea how much.
i have xp sp2 with comcast cable and internet at 100 mbs

272 May 03, 2007 at 20:50 by looneytunes

hey thanx a lot man!

273 May 04, 2007 at 08:04 by antionline

Utorrent is the best!

Another stupid tweak from antionline! (Broadband Connection only & Utorrent) i don’t know it’s work with another connection or not.

- not use DHCP.check your TCP/IP properties(network connection). input manually IP,subnet,gateway&DNS.
- try change your ip while using utorrent.ex : xxx.xxx.61x.25 to xxx.xxx.61x.40 so on.
watch your utorrent dl speed.if not increase,try change another ip.
- use port 6882/6884.you should have green light.
- always change your ip.when downloading from utorrent.

it sound stupid,but it’s work with me.my connection 64kB and i can fully get max speed,around 40-55kB.

274 May 12, 2007 at 18:35 by Army

Hey ppl’s. I Have a 11 mbps speed on my com and did all this stuff on the page, I even got tried to get the best seeds, and I got em. But my torrent speed on utorrent is still 5 kbps,. Can someone help me get up to at least 1.5 mbps?

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