Ever noticed little bends in your Ethernet cable? That innocent-looking kink might be the culprit that is triggering your Linksys router red light warning. Most users rush to reset their routers, but in reality, the culprit often lurks in damaged cable cores. Check for these subtle warning signs: intermittent connection drops before the red light appears, slight discoloration on the cable, or unusually warm connector ends. Don’t just wiggle the cables – take a good light and examine them inch by inch. The worst damage often lies near the connectors where repeated bending happens. Replace cables showing wear – it is cheaper than replacing a fried router port.