Yes, a router can work with fiber optic internet. The router connects to a fiber optic modem or Optical. A fiber-optic connection is the best choice for fast home internet as it has a number of advantages compared to traditional copper cables, such as faster speeds and less interference. Many major ISPs, such as Verizon and Xfinity, offer fiber connections directly to your door, known as FttP or Fiber. Instead of using your old router, a high-performance Wi-Fi router designed for fiber optic internet will ensure you seamless streaming, online gaming, and remote work all over your space. To simplify. The best router for fiber internet is one that matches your plan speed, home size, and how you use your connection. Whether you're streaming, gaming, or working from home.