I cant login into my router to change settings

I moved into a new place and got a Netgear cable modem CM400 to use with my nighthawk router for xfinity. I can conect to the internet threw my PC but i dont have wifi anymore and my xbox wont connect either plugged in.

I have tried differnt browsers as well as 192.168.1.1 & 192.168.0.1 & routerlogin.net & routerlogin.com neither works the page never loads

I cant ping 192.168.1.1 so im not connected to the router. I pressed the reset button on the router as well as reseting my modem and router multiple times.

I have cleared my cache on chrome. The only power light on my AC1900 is the power light and 1LAN, but still on internet. My Defualt Gateway starts with 73. i dont know if this matters.