How to fix LOS issue on your PLDT Fibr modem

Your home internet works perfectly well… and then it does not. A red blinking light suddenly lights up on your modem, particularly on the LOS indicator. 

If you are a PLDT subscriber and have encountered a Loss of Signal (LOS) issue on your modem, this blog might help you understand this problem. I can’t explain things in technical terms, but I hope this kind of shed light as to why LOS issues happen. 

What does LOS mean?

LOS or loss of signal is an interruption to your internet connection caused by multiple factors. When this happens, connecting to the internet is not possible either via LAN cable or WiFi connection.  

Why does LOS happen?

LOS usually happens because of the following:

1. The network cable has been moved.
2. The network cable has been damaged.
3. A network issue or maintenance has been performed from the provider’s (PLDT) end.

How to fix LOS on your PLDT Fibr modem?

1. Perform a power cycle by turning off the modem for 5 minutes and turning it back on. Check to see if the red blinking light on LOS disappears.
2. Check if the Fibr optic cable (the wire that connects the modem to the inner optic outlet) is properly attached to both ends (to the modem and to the optic outlet).
3. Check the cable if there are damages or cuts. The cable that connects your PLDT Fibr to one of the electric posts outside your house may have been cut. Usually, a red light will appear from the cut if you have a Fibr connection.
4. If all else fails, contact PLDT. You may do so by calling the 171 hotline or by sending PLDT messages via their social media pages. 

I have encountered this LOS issue around four or five times already, the worst one happened 3 years ago which rendered me for roughly 4 days without an internet connection, while the most recent one lasted for around 3 to 4 hours.