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How To Test My Ethernet Cable

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Ethernet cables are essential in connecting devices to a network. They can transfer data at high speeds and provide reliable connections. However, like any other hardware, Ethernet cables can break down or malfunction, leading to significant network failures. Therefore, it is essential to perform regular testing to determine the performance status of your Ethernet cables. This article will show you how to test your Ethernet cable.

1. Visual inspection

The first step in testing your Ethernet cable is to perform a visual inspection. Check the cable's connectors for any physical damage or corrosion, kinks or knots, and signs of wear and tear. Ensure that the cable is not frayed or broken. If you notice any of these issues, replace that cable.

2. Use a cable tester

A cable tester is a specialized tool that uses a simple mechanism to test Ethernet cables. There are two different types of cable testers: continuity testers and wiremap testers. There are testers that can perform both tests, known as combination testers.

Continuity testers check for electrical continuity on all wires of the cable. A wiremap tester checks for continuity and, at the same time, identifies each wire's function. Combination testers, therefore, perform the two tests in one unit.

3. Use a network tester

Another way to test your Ethernet cable is to use a network tester. These testers can identify various problems, including misconfigured IP addresses, network congestion, and slow transfer speeds. Network testers can also identify issues due to faulty cabling, such as shorted pairs or open circuits.

4. Use a multimeter

In case you do not have access to a cable tester or network tester, you can use a multimeter to test the wires in the Ethernet cable. Set the multimeter to the ohmmeter setting, and place the probes on each end of the cable. The multimeter will then display the resistance reading. If the reading is within the range of 1-10 ohms, the cable is still in good condition.


Ethernet cables form the backbone of modern-day networking, and their efficiency can affect the entire network. In case you experience network issues, performing regular testing of your Ethernet cables can help identify problems, such as faulty cables or connectors, before they become significant issues. Therefore, make sure that you follow the steps outlined above to help you test and maintain the efficiency of your Ethernet cables.

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