Should the router s fiber optic indicator light be on
What to check: Make sure the power cable is securely plugged into both the ONT and a working wall outlet. The tables in this article provide detailed information about the possible appearances of the LED lights on each device, the possible causes of each state, and what you should do. The LEDs on your modem, optical network terminal (ONT), router, or modem/router combo (gateway) are most likely blinking because they're communicating what the device is doing, or there's an error.
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