To find the best router for fiber internet, we used our expertise to select items based on key specs, such as speeds, coverage, wireless standards, security, weight, and additional features. We conduct in-house testing to check their signal strength, speed, and file transfer. In this guide, we'll walk you through how to connect a fiber optic cable to a router safely and efficiently. Make sure to update the firmware, configure Wi-Fi security, and customize your network name for optimal performance. Your internet service provider (ISP) usually supplies this. The fiber line terminates at the Optical Network Terminal (ONT), which is typically supplied and installed by the internet service provider.