How to set up a router if the operator controls the setting?

Question

Computer networks

When connecting at 192.168.0.1 I see this

Answer 1

There's a number on there to ask questions.

Answer 2

And if by telnet? Scan ports to 192.168.0.1, maybe there is another web interface? View the source of the web page, maybe there is a hidden button?
If your router, then reflash to normal firmware.