1Check the cable condition
2Test the cable connection
3Use a cable tester
4Repair or replace the cable
The final step to troubleshoot network issues caused by a faulty Ethernet cable is to repair or replace it. If the damage is minor, such as a loose connector or a small cut, you can fix it with some tools and materials: a wire stripper, a crimping tool, a pair of scissors, and some RJ45 connectors. Cut off the damaged part of the cable, strip the insulation from both ends, separate and untwist the eight wires inside, arrange them in the correct order, insert them into the connector and crimp it onto the cable. Test the cable with a tester or device to make sure it works. If the cable is majorly damaged, such as a broken wire or a corroded connector, you will need to replace it with a new one. You can buy one or make one yourself with the same tools and materials. By following these steps, you can improve your network performance and reliability while saving time and money in the long run.