Many popular BitTorrent clients such as uTorrent/BitTorrent, BitComet and Vuze can work right out of the box. Download, install, load a torrent file and it’ll start downloading, provided any needed ports are forwarded correctly. If you don’t tweak the configurations, most probably it’ll take you longer to complete downloading the torrent because the default configuration might not be very well optimized for your router or internet connection.
A slow to finish downloading game, movie or file from a torrent is not really a big problem. The biggest problem you’ll probably encounter is when someone else is on the network and your computer is downloading a torrent. Quite often all of sudden the internet connection will seem like it’s been cut off as if someone is using NetCut and there are problems browsing the web, Skype or your messenger program disconnects etc. Pinging the router could well give a “Request time out” error message.
This problem happens both with a modem and router. To get back the connection, you might need to disconnect and reconnect the internet connection, restart the router or even reboot the computer if the problem is really bad. Restarting the router is not a good solution because when the torrent detects a connection and starts downloading, the connection gets killed again.
There are ways to configure a torrent client such as uTorrent, BitComet, Bitfrost or Vuze so that if you’re having similar problems, your internet won’t get disconnected while downloading torrents.
This happens mainly because there is a large number of connections that BitTorrent utilizes is stressing out your router/modem. The default settings in a BitTorrent client are sometimes providing more connections than some modems/routers can handle. Since many of us are actually using the free and cheap modems or routers such as the Riger DB108-WL provided by our ISP , we have to lower the global connections in the BitTorrent Client.
Change the Connections in BitComet
1. Go to Tools and select Options (or press CTRL+P) to bring up the preference options.
2. Go to Advanced and click on “network.max_connections”.
3. Change the value from 0 (unlimited) to a more usable connection number (100) in the “Value:” box below, then click Apply.

Change the Connections in Frostwire
1. Click on the Tools menu and go to Options, expand the Bittorrent tree and select Advanced.
2. Change the value in “Global maximum number of connections” to your desired vale, thankfully the default isn’t set that high to start with at 100.

You’ll find more connection setting for some popular torrent clients on Page 2.
thx dude 50 worked for me just fine
Can’t believe it was that easy to fix the problem… Now I need to find all my other torrents again and get them back up and running. Thanks a lot! Can’t believe it’s actually working
God Bless you my friend, It is a 2 year problem for me that just got solved!!!!
Thanks! This has completely solved the problem I have had for a long time. You are real Super Hero for us!
awesome dude – works a treat. i adjusted ‘global connections’ to 100 and ‘max connections per torrent’ to = 20. just experiment to find what suits you
Thanks, I’m going to try this soon.
I try to go on the games, or on my laptop, and the internet is completely killed off. Because when my uncle is home (usually 95% of the time) he has on that stupid Torrent crap on downloading Comic Books and Porn -_____-
thanks everyone..works for me on my utorrent..i lower down the “Global maximum connections=50″ ; max number of connected peers = 20 and i got my internet browsing back to normal.
Thanks so much for this guide. Now I can torrent all day and not just while I am sleeping!
Thanks for this guide! really helped me alot!
Thanks buddy. I have had this issue for a couple of weeks. I tried this tweak on my utorrent and it has not crashed for the last two hours – which is a miracle :)
i have never thought of this fact “how much can my router take”! the truth is, a siemens SE-361i can take up to 200 connections at a time. downloading at full speed, and still can wath a YT video! this shitt is amazing! thanks mate
Took me a long time before I started looking for a solution to the router cutting out only while downloading via Utorrent. I thought it was my ISP cutting off torrent downloads automatically and it pissed me off LOL
Now I find out that its just a Modem Error from to many connections LOL Shit I just switched to 100 connections and am hoping for the best. It seems that the connection has improved now also.
Thanks very much for the info it makes my life much better, basically allows me to use Utorrent reliably again which is awesome. I’m very happy.
Thank you! I have been trying to figure this out for 2 years lol
Thanks! Your post must be popular, it was 2nd or 3rd from the top when I googled bitcomet slows internet. Thanks for your time in posting this.
thx a lot – it worked straight out on Vista
tnx very very…
You solved the problem for me, THANK YOU very much for information.
UTorrents info/forum was completely useless.
Thanks a million for that idea. It does work, and since I have a relatively weak connection (1 Mbps is the maximum download speed) I don’t experience any drops in speed. Perhaps I’ll even lower the number of connections further, I’ll see.
I read many many instructions on how to tweak bitcomet so that it wont disconnect my internet. All doesn’t work! But when i follow ur instructions, it works like magic! Now i can surf and download at the same time. My DL speed also improve. Can’t tell u how much grateful i am! Thank you so much!
thanks!! :-*
now, i can go AFK while downloading.. :)
Dog! You rock. I’ve never been able to diagnose this and you nailed it. Also, this never happens when I’m downloading, say, Sabayon Linux and there are only 40 peers connected–total. If happens when I’m downloading swarms like SXSW 2009 and there are 600+ peers connected. That kinda reinforces the Max Connections theory. (And for the haters, hasn’t slowed the D/L speed either. I’m still at rock-solid 90% rated speed which is where I want it.)
I couldn’t figure this out either. I’ve never had a problem for the last 2-3 years but now every time I would get close to 500 or 600 kB/s my connection would crap out. I’ve changed my settings in Utorrent to 100 max connections and its working so far. Although my speed is only at 270-300 now.. I’ll keep trying to add more by 20′s Thank you.
thanks alot! i hope this works. i’ve been looking for a way to resolve this issue for 2wks
O MY GOOD GOD, you have NO idea how many long hours ive sat by my router trying to work out why it kept cutting me off, works like a charm now, no cutting me off the internet, MY DOWNLOADS actually download haha, i could kiss you!
Works for Bitcomet !! thanks!! I lowered ALL those settings to 1 .. the global connections and the TCP connections… now I will push them up bit by bit..
CHEERS
for bittorent works,
thank you
Thank you for your Great Config
thanks alot
wish u the best
thanks man. That really helped alot.
I’ve been looking for this solution for ages now. thanks for the insight
thanks a lot brother..
Thank you Raymond for another useful tip.