What does LOS mean on a fiber optic router
When this light appears on your fiber router or ONU (Optical Network Unit), it indicates that the device has lost its connection to the fiber network — even though your router may still be powered on and Wi-Fi may appear active. However, when it blinks red or stays solid red, it signifies a Loss of Signal, a problem preventing your router from communicating. This guide explains the likely causes, the checks you can do at home, and when the issue needs technician support. Existing Krishii Fiber customers can share their registered mobile number, area and a. " It indicates that your modem or Optical Network Terminal (ONT) is not receiving a proper signal from your internet service provider.
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