Among the repair options are replacing the broken Ethernet cable, using an Ethernet coupler, or employing an Ethernet cable extender. The guide also suggests utilizing nylon cable ties to secure the RJ45 plugs temporarily. This. Is the cable visibly crushed or cut? Is the connector (RJ45) loose, broken, or frayed? Are there kinks that may have damaged internal wires? Sometimes, a flaky connection is due to a simple connector fault; other times, the whole cable is throwing a tantrum. But you would need a special crimp tool. Or if there's a computer repair place in town they. If your Ethernet cable is broken, what will you do? Many people may choose to replace it with a new network cable. But in emergent situations, this toolless Ethernet Extension Connector can be a great option for you.