This guide provides a detailed roadmap for locating and fixing fiber optic cable breaks, covering detection techniques, repair methods, and best practices. Let's break down why this happens, how to fix it, and how Netlink ensures reliable connectivity even during heavy rains. Why Does Internet Fail During Rain? 1. These cables are typically installed underground or through aerial means, such as on utility poles. In this. Fiber optic networks are essential for high-speed communication and data transmission, but they can also be vulnerable to extreme weather conditions such as storms, floods, heat waves, and cold snaps.