The most common causes of this are loss of power to the fiber terminal (ONT) or an unplugged network cable. The other end of this cable should be plugged into the active. However, situations may arise requiring you to disconnect these specialized cables from modems or routers. Fiber optic cables are different from traditional copper cables, as they use light to transmit data, and the connectors are more sensitive. Here is a. This light will show whether the router is receiving an optical signal through the fibre cable coming into your house. This should be green during normal use. Is this something that requires a Verizon support tech or can I do it? If so is it as simple as disconnecting and reconnecting or would I have to call support to "reinitiate" my setup. If the fiber patch cord is broken, you can replace it with a new cord.
