Fiber optic modem (ONT): Most fiber connections require an Optical Network Terminal (ONT), provided by your ISP. Compatible router: Verify that your router supports fiber optic input (look for an SFP or WAN port labeled "ONT" or "Fiber"). To establish an internet connection via your fiber optic connection (Fiber to the Home, FTTH), connect the FRITZ!Box to the fiber optic connection and enter your account information in the FRITZ!Box user interface. If your line is from the Deutsche Telekom, use the guide Setting up the FRITZ!Box. This morning my ISP upgraded my Internet connection from a standard coaxial cable and Cisco modem to a fiber optic cable and Hitron modem Model Name NOVA-2004. Despite multiple attempts, the Archer AX6000 v1. Why Use Fiber Optic Internet? Before diving into the setup, let's quickly. Fiber optic internet is generally installed in the following 5 steps, which we'll dive deeper into throughout the article: A technician checks your area and prepares the connection from the neighborhood fiber network. The challenge I have is that I can no longer access devices on my network. When issues like signal loss, slow speeds, or intermittent connectivity arise, systematic troubleshooting is key.