You can't directly connect a fiber optic cable to your router. You need an intermediary device. Instead of a modem, fiber connections require an Optical Network Terminal (ONT), a device that converts fiber signals into an Ethernet connection. In fact, the overwhelming majority of fiber internet customers around the world do exactly that — they keep using a standard Wi-Fi router they already own. The process to connect fiber optic cable to router requires careful attention to detail, but I'll walk you through every critical step with the precision and clarity you deserve.