Can't access router config page 192.168.1.1

I am on Win 10 Home 64 bit, I noticed that I cannot reach my wi-fi router config page http://192.168.1.1. Doing so gives me the "can't reach this site" on all browsers - Chrome, FF, IE, Edge. I am able to ping 192.168.1.1 I have tried various suggestions like disabling Firewall, disabling anti-virus, ipconfig /renew, updating network driver etc. I am able to access the config page from my mobile and tablet. I remember I was able to access the page sometime ago, some changes seem to have been made recently but can't seem to figure out. Please help!

I have tried https. ipconfig output is as follows:

Wireless LAN adapter Wi-Fi: Connection-specific DNS Suffix . : Home Link-local IPv6 Address . . . . . : fe80::6d22:7633:761:1364%6 IPv4 Address. . . . . . . . . . . : 192.168.1.4 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1

Sorry, if I'm insulting your intelligence but can you check that the PC IP address is 192.168.1.xxx

Yes I do have the ip address 192.168.1.4 (seen in the ipconfig output shared earlier)

Which model of router do you have?

The settings may be at 192.168.1.254.

deleting history, cookies, files, can help clear this up, and then even, resetting the modem/router, this is one of my old tricks, it worked for me..