Stop BitTorrent from Killing Your Internet Connection

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.

BitComet network.max_connections

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.

frostwire global maximum number of connections

You’ll find more connection setting for some popular torrent clients on Page 2.

Change the Connections in uTorrent / BitTorrent

1. Go to the Tools menu and click on Preferences (or press CTRL+P) to bring up the settings options.

2. Click on Bandwidth and set the “Global maximum number of connections:” to a lower number such as 50 or 100.

uTorrent Global maximum number of connections

Change the Connections in Vuze (Azureus)

1. Go to Tools and choose Options (or press CTRL+,) to bring up the options window.

2. Go to Mode and select Advanced to enable the extra options.

Vuze Advanced Mode

3. Next click on Transfer, untick “Automatically adjust these settings based on connection speed” and set the “Max connections globally” to your chosen number. Luckily these days this is set to 100 by default, but it may need adjusting up or down to get the best for your connection.

Vuze Max connections globally

Change the Connections in Tixati

Tixati doesn’t actually have a specific setting to control the overall maximum connections and instead you have to rely on setting the connections limit per transfer and adjust this accordingly depending how many torrents you normally download at once.

1. Click on the Settings button and navigate to Network -> Connections.

2. Set the “Maximum peer connections per transfer” to the desired value. Remember the default of 55 is per torrent download so if you only ever download 1 torrent at a time, 55 is effectively your global connections number, 2 at a time is 110 etc.

tixati Maximum peer connections per transfer

It’s also possible to set a per transfer value for each individual torrent download so 1 torrent can have 10 connections while another has 110 etc. Click on the torrent download in the window and go to the Options tab -> Peers and untick the Use Default Settings in Connections and set it to the desired value.

You can try the changing the values to 50 or 100 connections for starters and see if your connection can cope with it. If your router is able to handle that amount without killing your connection, you can try adding 20 more and continue until you find the limit. For BitTorrent clients that are not listed in this article or for those that don’t allow you to configure the connection values, you can use NetBalancer to limit the download and upload transfer speed.

Alternatively, you can get a better router such as 3Com or Belkin to replace your cheap router provided by your ISP if it is supported. Also full bridging mode works but it’ll leave your computer more vulnerable to attacks. In this case you’ll need to install a good and stable firewall to protect you.

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