Thank you for the reply, I unplugged WAN cable from router and directly connected to my PC and still failed to access my modem. "Default Gateway" shows an IPv6 address which never works. I guess,...

Thank you for the reply. But I can't access the modem. I guess there is something wrong with my modem or my ISP configured it in such a way that it can never be accessed or only be accessed by them.

I know my router's LAN IP Address. But I want to know my Modem's LAN IP Address to which my router is connected, so that I can access Modem settings in future. Is there anyway to know that? A sticker...

@woozle Thank you. I solved the problem myself anyways. I enabled TLS 1.0 and 1.1 in Windows "Internet Options settings" and reloaded the router web interface in Internet explorer mode within...

"The client and server don't support a common SSL protocol version or cipher suite" error occurs whenever I try to access the TP-Link Router management web interface. PLease help.