How To Fix PLDT Router LOS Blinking Red? Right Now

How To Fix PLDT Router LOS Blinking Red? Today’s modern connectivity has made us increasingly dependent on internet access. The problem arises when routers malfunction. For example, when PLDT routers go out of range, they blink red.

However, this seemingly simple indicator often hints at a much more complex underlying issue that interferes with our online activity.

Red LOS lights on PLDT routers are caused by a variety of factors, which this article discusses for smoother, uninterrupted internet performance. # PLDT Router LOS Blinking Red

PLDT Router

There are millions of customers in the Philippines who receive telecommunications and digital services from PLDT, one of the nation’s largest and most prominent telecommunications companies. In addition to fixed-line, mobile, and internet, they also provide a variety of other services.

There are many routers available from PLDT that can be used for home and business use. These routers provide wireless and wired connections in addition to creating local networks.

It is possible to connect to the internet at top speeds with these routers, which support both DSL and fiber optic connections.

There are many models available with varying features from the PLDT. # PLDT Router LOS Blinking Red

What is LOS?

The loss of signal is called signal loss. As most ISPs provide a modem-router combination device, your modem may be able to establish a local network connection for your personal devices, but signal loss prevents it from communicating with your ISP.

The internet cannot be accessed without an Internet service provider.

In this demonstration, I will demonstrate how you can handle LOS regardless of the ISP you choose, whether it be PLDT, Globe, Converge ICT, Eastern Communications, Planet Cable, PT&T, or SkyCable.

Why Is My PLDT Router LOS Blinking Red Light?

On PLDT routers, a blinking red LOS light can indicate a problem with the internet connection. Modems can lose signal for a variety of reasons, and when the red light blinks or stays steady, it indicates a signal loss.

When your modem loses signal, it usually establishes a local network connection, but cannot communicate with your internet service provider. # PLDT Router LOS Blinking Red

  1. Cords that are damaged or loose need to be patched.
  2. Cables with extremely bent fibers.
  3. If the fiber cable connecting your modem and pole or NAP box is damaged, your modem will not work.
  4. In your area, you are currently upgrading or maintaining the equipment of your ISP.

In the event that your modem shows a red LOS light, you have a few options:

  1. Modem/Router power cycle: Power cycle your modem and router for five minutes to refresh your connection. If your LOS light is on, your modem is synced.
  2. Check for loose cables: Your modem’s cable connections to the fiber optic terminal box (the white box attached to the wall) are probably loose.

You may be required to contact your Internet Service Provider if the light is blinking because the modem is out of sync with the provider.

If the problem persists, a technician may be dispatched to repair the problem. # PLDT Router LOS Blinking Red

How do you check for Loss of Signal with your internet?

Modems indicate the loss of signal differently when there is a loss of signal. A modem may have an LED indicator that doesn’t have a label; it might say “Internet,” or you might see it in the manual.

An LED indicator that behaves differently than usual should be acted upon immediately if it does not. 

The following methods can help you determine whether a loss of signal (LOS) is affecting your connection:

Check Router Lights: 

On routers, there are usually indicators that describe the status of the connection, such as red LOS blinking lights that indicate a loss of signal.

Check Modem/Router Dashboard: 

Your router’s administration panel is likely to have an internet status tab that displays information regarding your internet connection.

Look for any error messages or indicators that indicate connectivity problems.

Inspect Router Lights and Signals: 

Generally, a strong connection will have your router’s indicator lights flashing green or blue, while a weak connection will have them flashing red or any other abnormal color.

Use Ping Tests: 

If you would like to check if there have been packet losses or delays, you should open the command prompt (on Windows) or the terminal (on Mac or Linux). Use the command ping [website or IP] to test several different websites.

Test Internet Access: 

It is possible that you are experiencing a loss of signal if you are having trouble loading pages, experiencing frequent disconnections, or experiencing frequent disconnections when your internet speed slows down.

Run a Speed Test: 

If your internet speed drops suddenly, you may be experiencing a loss of signal or connectivity issues. Internet speed testing tools can be used to determine your connection’s speed.

Contact Your Internet Service Provider (ISP): 

If you experience a signal loss, your ISP can run diagnostics on their end to determine if the problem is related to one of these problems, or if another issue is affecting your connection.

Loss of signal can occur for a variety of reasons, including issues with your Internet Service Provider, physical connection issues, hardware malfunctions, or interference.

If you suspect a loss of signal after checking the basic troubleshooting measures, please contact your ISP’s customer support for further assistance and diagnosis.

PLDT Router LOS Blinking Red

How To Fix PLDT Router LOS Blinking Red?

It could mean that there are many problems disrupting your internet connection if your PLDT router’s LOS light is blinking red. # PLDT Router LOS Blinking Red

Follow these steps to troubleshoot it and possibly resolve it:

Check Your Physical Connections:

It is important to make sure that the PLDT router cable is securely connected to the router’s PLDT port, and the DSL router cable (phone line) is connected to the router’s DSL port.

In this case, the first step would be to check the following:

  • Modems and fiber optic cables should be connected properly.
  • An object’s condition should be described along with any damage or abnormal bends.
  • Check to see if there are any loose or damaged connectors.

At each end of the fiber optic cable, cables should be checked, and if necessary, new ones should be purchased.

Once this inspection has been completed and the cable has been replaced or reconnected, the next solution can be tested. # PLDT Router LOS Blinking Red

Power Cycle the PLDT Router:

It is possible to solve many minor connectivity problems by turning on the router, waiting 30 seconds, and then turning it back on again.

You can also update the firmware of your PLDT router by following these steps:

  1. To access your router’s dashboard, enter the IP address of your router (usually
  2. You will need to enter your login information, which usually is “admin” and “1234”.
  3. When you log in to the router’s settings, look for the Firmware or Update section.
  4. To update your PLDT Home router, visit the PLDT Home website’s download page or your router manufacturer’s website.
  5. Once you have uploaded the firmware update file, you can go back to the router’s settings to confirm the update.
  6. Reboot the router to apply the update: Finally, reboot the router to apply the update.

You may need to refer to the user manual or contact PLDT’s customer service for more detailed information on the steps you need to follow for your specific PLDT router model.

As a precautionary measure, back up your settings before updating the firmware.

Test Your DSL Line:

Testing your DSL line with another device (if possible) through your internet service provider (PLDT) can help you determine if there are any problems.

It is recommended to keep electronic devices and wireless gadgets away from the router whenever possible sources of interference exist. # PLDT Router LOS Blinking Red

Reboot and Reset the Router to Factory Settings:

This is a very useful and easy way of fixing network problems. Give it a try if you are having trouble with your network at home.

In addition to unplugging the router’s power cable and restarting it, you can try the next solution. If it still appears, try disconnecting the router’s power cord from the outlet.

A factory reset can be performed on your router when necessary by pressing the reset button on it for around 10-15 seconds.

Update Your TLDT Firmware:

In the router’s admin panel, you are able to see if there are any firmware updates available.

Outdated firmware can cause connectivity issues, so if possible, update the router immediately. # PLDT Router LOS Blinking Red

Contact PLDT Support:

Customers might be able to get more assistance from PLDT customer service than just basic troubleshooting. They may be able to run diagnostic tests on their systems or send a technician.

After following these steps, it is likely that you will need to contact your internet provider for more technical assistance.

These steps are intended to resolve common issues with LOS red blinking.

What can you do when You experience Loss of Signal?

LOS issues might resolve themselves without your intervention. Take a few minutes to use the bathroom or stretch.

By the time you return to your computer, the issue may be fixed.

Check for loose cables

Your modem connectors may have come loose because something may have caused them to come loose.

Make sure there are no loose cables connected to your modem.

Update the firmware

You should update your firmware if necessary. Follow the instructions carefully when updating firmware.

Modems run more efficiently when there are fewer power cycles as a result of firmware patches.

Contact your Internet Service Provider (ISP)

In the worst cases of LOS, you have no choice but to contact your ISP and request a repair. Even though you may be enraged, try to avoid being negative to the customer service representative you may encounter.

You will not be able to get your signal outage or other service outage fixed any faster if you do this. Furthermore, customer service reps are also humans. Your call center employee will provide you with better service if you are less abusive.

power cycle Your Device

The majority of networking problems can be resolved by simply restarting your modem. Modems are basically computers that become slow over time due to memory leaks, overheating components, and other performance-related issues.

The modem can be made more stable by performing a power cycle. To do a power cycle, turn your modem off for about 10 seconds and then turn it back on.

How To Open Messenger in Browser?


When a PLDT router blinks a red LOS, it can be difficult to figure out what the problem is. Users can restore internet connectivity by following the steps outlined in this guide.

You can resolve red LOS signals by adjusting hardware connections, observing external interference, or contacting your service provider.

Red LOS blinking can be overcome by following the right steps and knowledge, and users will once again be able to enjoy seamless online experiences.

Leave a Reply