Region : Hongkong

Model : TL-WR740N

Hardware Version : V4

Firmware Version :

ISP :

My router never had any problems until a few days ago when suddenly I was not able to reach any web content, although still connected to the internet. I tried to restart both the router and the modem several times, and I think my modem does not have any problems, since it's still able to let my tv box receive channels. While I am not able to access any web content both through Wi-Fi and Ethernet.I found that the WAN symbol on my router is lit, but it's not flashing as it is supposed to do when there is an active connection. Also, there is no WAN IP Address on the router’s status page. I tried following the suggestions on the FAQ page, but there is still the same connection problem. What could be the problem with the WAN connection? Is there anything I can do to resolve this problem myself, or is this the problem of my internet service provider?