I can't log in to my router, what should I do?

Question

ASUS

I have a RT-N12+ router, I can’t find it in the admin panel, only I know the login password and I didn’t change it, it gives out
“* Invalid username or password”
and there are so many settings on it that it’s scary to do a hard reset, what could it be? Have I been scammed?

Answer 1

Since a pair of L / R does not fit, then someone has changed ...
Or, nevertheless, you are not entering correctly =)

Answer 2

Reset button on the router case. She can return everything to default.