Can a Bad Ethernet Cable Slow Down the Internet?

Have you ever wondered why your internet connection is always so slow?

There are many factors that can slow down your internet, but one of the most overlooked is bad Ethernet cables. Fortunately, it’s easy to fix! Find out more about this hidden cause of crappy internet speeds and how to resolve it.

How bad cables can slow down internet speeds

One of the most overlooked causes of internet connection speeds is bad Ethernet cables. You may be thinking to yourself “how could that happen?” And you’re right—it shouldn’t happen. The problem is, when you buy a new cable, it’s not always tested to make sure it’s up to your standards.

In fact, when your old cable finally goes out and you need a new one, chances are you’ll buy the cheapest one possible because it’s typically hard to tell the difference between good and bad cables in person. But this can lead to a thousand dollars worth of lost internet speed for your company!

Here’s what happens: when a cable is too thick or too thin in diameter or has imperfections in its metal conductor, it will create signal attenuation. This means that the signal won’t go as far as it should and lose connection quickly. As soon as this starts happening, your internet becomes really slow– so slow that many people don’t even know what the problem is!

Bad Ethernet Cable Slow Down the Internet

Common things that can cause a slow connection

There are many different reasons why an internet connection may be slow. But one thing that may be hindering your connection is a bad Ethernet cable.

What does a bad Ethernet cable do, exactly? Well, a poor-quality Ethernet cable can cause data to transmit at a much slower speed than it should. This means that you will have a slower browsing speed and less content will load on your screen. Of course, this is not ideal for someone who needs to get things done quickly online!

If you experience any of these issues with your internet connection, there’s likely something wrong with the cables. You might want to check them out and replace them if they’re old or have been damaged in any way. You can replace them by following these steps:

1) Ensure you have all of the needed materials: New Ethernet cable, protective end caps, and pliers for crimping the ends shut.

2) Remove the existing cable from the wall jack and disconnect at the other end.

3) Open protective cap on new Ethernet cable and strip outer sheathing back about 8-10 inches from the end of wire pairs.

4) Disconnect wires from old cable at both ends and connect corresponding wire pairs from new cable to wall jack or hardware

Why upgrading your cable is important

It’s possible that your internet is slow because of cables. You might not realize it, but Ethernet cables can cause big issues with the quality of your connection.

As technology evolves, our internet needs to change with it. A few years ago, when most people were using dial-up to connect to the internet, everyone used an Ethernet cable to plug in their computer. But now, more people are switching to broadband or wireless for their high-speed connections. This means many people don’t know how to use an Ethernet cable anymore!

One of the most common causes of slow connections is bad Ethernet cables—even if you’re using a broadband or wireless connection. If you can’t get a good speed test on your connection, you might want to consider upgrading your cable and see if that fixes the problem.

How to test the speeds on your network

The first step in diagnosing your internet speed is to find out just how fast it is. There are many ways to do this, but the easiest way is to run a quick test on your network.

To test your network speeds, you’ll need an Ethernet cable and a computer that has both Wi-Fi and Ethernet capabilities. Plug one end of the Ethernet cable into the back of your router. It should be located near the power source for your router. Connect the other end of the Ethernet cable into your computer’s ethernet port or one of its USB ports using a USB-to-Ethernet adapter.

Next, sign in to your router’s control panel by visiting from your browser window and entering “admin” as the username and “password” as the password (these are usually present).

Once you’ve logged in to your router’s control panel, click “LAN Cable Test” from the menu on the left side of the screen. This will run a simple test on all of your devices connected via ethernet cable and show you their download and upload speeds separately in megabytes per second (MB/s) for uploads and downloads respectively.


One of the most overlooked factors in the quality of your internet connection is the cable that you’re using to connect your modem to your router. If your cable is old or bad, it can slow down the speed. If you’re not sure if you need to replace your cable, there are a few things you can do to test its speeds. The first step is to download a free internet speed test. This will let you know the average speed of your internet. If it’s low, then you may need a new cable.

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