To set up your router for fiber internet quickly, connect the router to your fiber modem, access the router's settings via a web browser, and input the provided ISP credentials. In this guide, we'll explain router compatibility, setup steps and whether upgrading your router is necessary to maximize fiber speeds. However, setting up a fiber optic connection to your router can seem daunting if you're unfamiliar with the process. We've done the research for you and put together this in-depth guide that lists multiple options, their details, reviews, and pros and cons. This should help you make an informed decision.