Connect the fiber optic cable from your ISP to the ONT (Optical Network Terminal) provided. Power on all devices and configure your router for the internet connection. Why Use Fiber Optic Internet? Before diving into the setup, let's quickly. Setting up a fiber internet connection requires understanding key hardware components and following a specific connection sequence to establish your home network. Here's a general guide and examples based on common scenarios: This usually involves connecting the fiber cable from your internet service provider (ISP) to your home. Connecting a fiber optic cable to a router might seem daunting at first, but with the right tools and a bit of patience, it's a straightforward process.