

The signal intensity is measured in DB, and it is either out of specified range, or non-existent.Ĭould be broken fiber, a fiber to fiber splice that is poor, or no signal from the street because Solid Green - Service is on - unit is receiving data from the network.Īlarm - If on, indicates issue with the fiber connection from the street to the ONT. If the red light is related to some internet connectivity issue, moving the router can help.
#RED ALARM LIGHT ON ATT FIBER BOX FULL#
Septic tank alarm going off when the tank is full of water can be due to overflow. The red light on the septic system means that the water level is too high or low.

Check for the green light as it indicates the alarm has power. Turn on the modem first, and then turn on the router. Turn on the alarm or push the red button to turn the alarm off. Before plugging them back in and turning them back on, wait a few minutes. Possible cut in the fiber / tree limb, or equipment upstream of you not getting proper power. To do that, turn them off and unplug the gateway. Seems like you have no service to the house.
