Connect Your Router: Use an Ethernet cable to connect the ONT to your router's WAN port. Test Your Connection: Check your internet speed to confirm optimal. Fiber optic internet delivers blazing-fast speeds and reliable connectivity, making it a top choice for modern homes and businesses. Understanding compatibility, potential limitations, and when an upgrade is necessary will ensure you get the most out of your high-speed connection. Instead of a modem, fiber connections require an Optical Network Terminal (ONT), a device that converts fiber signals into an Ethernet connection. Network Management: It manages and prioritizes network traffic.