Two weeks ago, PLDT finally installed this so called fibre internet. The subscription is for 20 Mbps but I only get a maximum of 13 Mbps using speed test and most of the time around 3 Mbps. When I complained, the lady from 171 said that I have to wait for it to be "activated". Out of curiosity, I asked her if she is directly connected to PLDT. She said no, as she is a call center agent. Many years ago, I had a problem with a dial up connection. The guy said that perhaps I have an illegal copy of Windows, a cracked version which is the culprit for the internet connection problem. What I'm saying is that you can't expect much when you tell them some issues that you encounter.
What you can do is borrow another router and try to check your internet connection. If all is good, that means to say it is time to buy a new router.