Most of the time, restarting your router, checking your cables, or updating the firmware can resolve the blinking red light issue. A red light on your router can be a source of frustration and confusion. Here. 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. Ensure your Fiber Jack is connected to the network and the LED lights are connected and working properly before moving. 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. This could signal issues that range from minor glitches to serious connectivity problems.
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