Unable to open login page of router

[Aiden2k13]

Hello, I am using Netgear Nighthawk x6 R8000 and I am unable to open the login (routerlogin.net) page of the router. Whenever I am trying to open it , it says it cant open. Tried multiple browsers like Chrome, firefox, opera etc but alas same thing.
I had to open the login page from my mobile using wifi and then I have to put the IP address of my internet from my mobile into the router. Then I can browse the internet on my PC.
I already reset the router couple of times but same thing.
Also whenever I am trying to assign DHCP server from 192.168.1.1 , I cant open the login page using that address.

Now I bought a secondary TP Link router and its the same case. Cant open from PC.

Any idea how to fix this ? Why is login page not opening from PC ?

 

[Mason1204]

what are you typing in to bring up? Verify you are using the correct default gateway by opening up cmd (command prompt) and typing in ipconfig. Then once you type in your default gateway into your browser you should be prompted to enter a password and username.

 

[Aiden2k13]

what are you typing in to bring up? Verify you are using the correct default gateway by opening up cmd (command prompt) and typing in ipconfig. Then once you type in your default gateway into your browser you should be prompted to enter a password and username.

I did check the ip from cmd and I am typing that 192.168.1.1 or www,routerlogin.net and its not opening on PC.