This light indicates whether your ONT is connected to a device—usually your eero™ router—via Ethernet. What to check:Understanding LED Indicators on a Fiber Router Let's break down what the common LED lights on a fiber router mean and how they behave: 1. POWER Normal: Solid/stagnant light. If OFF: The router is not powered — check the socket, adapter, or power cable. PON (Passive Optical Network) Normal: Solid. What used to be simple, single-light modems have transformed into sophisticated devices with multiple LED indicators, each communicating specific information about your connection status. Sometimes, the different colored lights are used to represent different states of functionality. Ensure your Fiber Jack is connected to the network and the LED lights are connected and working properly before moving. What are Router Status Lights? Router status lights, often referred to as LED indicators, are small lights on the front panel of your router.
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