Several reasons can cause the LOS light to blink red: Fiber Optic Cable Damage: A physical cut or bend in the fiber optic cable can disrupt the signal. Service Outage: ISP maintenance or a local service outage can interrupt your connection. When it's green and steady, everything is fine. However, when it blinks red or stays solid red, it signifies a Loss of Signal, a problem preventing your router from communicating. A router showing a red light can mean different things, like a service outage, misconfiguration, or loose connection, all of which can lead to a broken internet connection. Fortunately, there are heaps of ways to fix a red blinking light on your router. These situations need to be fixed quickly, so here are some ideas. 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.
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