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"). Also when. Fiber optic technology represents a revolutionary advancement in connectivity, transmitting data via pulses of light through thin strands of glass or plastic fibers. This method enables significantly faster speeds and greater stability compared to traditional copper-based connections. 1 pc is connected to lan 1 and has gigabit, the other is connected to lan 2 and doesnt have gigabit. Do i have to do something else to make this work? What could be the issue? Is it the cable? are all the. 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.