While fiber optic connectors offer significant advantages in terms of high-speed data transmission and low signal loss, they also come with several disadvantages. One of the primary disadvantages of fiber optic. If you bend or squeeze the fiber optic cables too much behind equipment, you can cause errors that are hard to find. Sharp bends or tight spaces can damage the cable or weaken the signal. The cost of laying fiber optic cables can be prohibitively expensive, especially for small. Executive Summary: Fiber optic cable failures cost enterprises an average of $15,000 per hour in network downtime—yet most catastrophic losses stem from a handful of preventable installation errors.