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Find Out Who’s Eating Your Bandwidth With These Tips

Click….wait. Click….wait. Click….ARG! Sound familiar? That’s the sound of someone running out of Internet bandwidth.

A lot of things can drain away the capacity of that pipe that connects your computer to the Internet. It could be other people or devices on your network, or it could even be malicious applications or services running on the PC itself. The problem can get so bad that some people will toss out their computer and buy a new one.

It doesn’t have to be that way. While the problem could be coming from anywhere, it isn’t impossible to troubleshoot if you know where to look, what tools to use, and what to do when you find the culprit. In this article, I’m going to give you a hand and walk you through the process of tracking down that bandwidth hog and shutting him down.

Track Down The Bandwidth Bandit Via Your Router

You could start just about anywhere when it comes to isolating the bandwidth hog on your network or inside your computer, but in order to grab at the low-hanging fruit, it’s best to start with your network. A few of the solutions below can focus in on a culprit quickly and resolve your problems immediately. So why waste time troubleshooting your own computer before canceling out the external issues as a possibility?

The first and quickest way to check what’s connected to your Internet through your router is the DHCP Client table. Each router is a little different, so you may need to search for which menu the table comes under. For Linksys, it’s typically under the “Status” Tab, and then the “Local Network” menu item.

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Next, just click the “DHCP Client Table” button, and that’ll take you to a list of all clients that are currently logged into your network. Are there any there that you don’t recognize? If so, there could potentially be a neighbor that’s drawing out much of your bandwidth.

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All you have to do to put an end to it is click on the “Delete” button to the right of that client. Just be careful not to inadvertently delete one of your own clients, because to reconnect to the network with that device, you may need to re-enter your security password again. Not a big deal, just a hassle.

Use Third Party Utilities To Unravel Bandwidth Problems

Another option is to turn to software tools that can reach out and monitor devices on your network. One of those utilities is a free app called Capsa, which Matt actually mentioned in his Guide to Home Networking.

Capsa is really impressive, and it’s hard to believe that it’s free software. Running Capsa, you can see traffic on your network and associated data transfer rates to and from the various hosts, which you can find under the “Protocol” tab once you press “Start” on the main welcome screen.

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This is even better organized on the IP Endpoint tab, which lines up all of the hosts in one area and then in the lower pane, shows you all of the remote IP connections of the host you selected in the top pane. By the way, this is a great way to check out what your kids are up to on your network without actually installing monitoring software on their computer.

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Capsa is by far my favorite. This is similar to using another bandwidth monitoring app I covered recently called NetworkMiner, except that Capsa is less about network hacking and packet sniffing, and more about monitoring your network for activities and different traffic protocols. Either application would serve you well, though.

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