My AC2300 Wireless Router's WAN port seems to have stopped working. 

I have tested all possibilities. Initially, I thought at first it was the ISP's modem that was not working so I did the following troubleshooting steps:

• TP-Link internet indicator not lighting up
• Unplugged and replugged all devices (modem and router)
• Disconnected and reconnected all cables (modem and router)
• Changed LAN cables
• Reset both devices
• Connected my laptop directly to the PLDT modem via LAN - the internet worked so this means the LAN cable is working and the PLDT modem is working

Please let me know how I can resolve this issue. Unfortunately, the one-year warranty lapsed two months ago.

I've been trying to reach Tech Support via email and phone but no success.

Let me know where I can bring the device for inspection and diagnosis.