nighthawk app can't modify settings when nighthawk cax80 modem is offline

[afitz485]

My cable modem (with wifi router) CAX80 can connect to the internet over the coaxial cable. The Xfinity tech came over and set up the connection.

I decided to take the modem offline in order to change the settings on the WiFi router. I prefer changing the WiFi settings before turning the WiFi on.

I have the nighthawk app installed on my Pixel 6 - I was able to log on to the router using an ethernet cable - however, when i start changing the password and security questions, it will not save the new data. The error message says that the routerlogin.net/..... site is unreachable.

I also tried logging into the router using my PC, with the same results. I can get to the page for changing the password. Saving the information does not work.

As a last resort, I logged onto the router using WiFi. It asked for the serial number, but on the next page, I got an error: http://192.168.1.1/goform/PwdRecCheckserial?id=.... is unreachable.

Do I really need the connection to the internet in order to access/modify the router settings ?

Thanks.

[FURRYe38 · Accepted solution]

Factory reset the modem and setup from scratch using a ethernet connected PC and web browser.

[FURRYe38 · Accepted solution]

Factory reset the modem and setup from scratch using a ethernet connected PC and web browser.