Wireless router fiber optic light is red

A red fiber optic light on your router indicates a loss of signal, meaning your router cannot communicate with your Internet Service Provider (ISP).What the Red Light MeansThe red LOS (Loss of Signal) light signals that your router is not receiving a proper connection from your ISP. This can appear as either a blinking red light, indicating intermittent signal loss, or a solid red light, indicating a stable connection failure or hardware issue . Without resolving this, your internet connection will be unavailable, affecting streaming, browsing, and other online activities .Common CausesFiber Optic Cable Damage: Cuts, kinks, or bends in the fiber line can disrupt the signal .Service Outage: ISP maintenance or local outages can temporarily cut your connection .Loose or Faulty Connections: Improperly connected cables or damaged connectors can trigger the red light .Router or ONT Malfunction: Hardware issues or firmware errors may prevent the router from establishing a connection .Power Fluctuations: Inconsistent power supply can interfere with router operation .Troubleshooting StepsCheck for ISP Outages: Visit your ISP's website or social media for service updates .Inspect Fiber Optic Cable: Ensure the cable is undamaged and securely connected to the router's WAN/ONT port . Avoid bending the fiber sharply.Power Cycle the Router: Unplug the router and modem for about 60 seconds, then reconnect .Check All Connections: Verify that all cables, including Ethernet and fiber, are firmly seated .Router Reset: If the problem persists, perform a factory reset using the hidden reset button as a last resort .Contact Your ISP: If none of the above steps work, your ISP can check for line issues or replace faulty equipment .Safety NoteNever look directly into the end of a disconnected fiber optic cable, as it can be harmful to your eyes . By following these steps, you can often identify and resolve the cause of the red fiber optic light and restore your internet connection.