How to fix LOS red light on modem (PLDT, Globe, Converge)

If you're a Fiber subscriber from PLDT, Globe, or Converge ICT, you might experience having no internet connection due to the blinking or steady red light of 'LOS' on your modem. This is a frustrating moment especially when you're doing something important using the internet. The red LOS light on your modem/router will also affect the dial tone of your VoIP phone. In this post, you will know