No Configure Tabs Are Shown

To start with, I am trying to port forward my modem and the modem doesn't let me... I can't explain it in any other way other than my modem is purposely hiding it from me about after a quarter (1/4th) of a second after loading or refreshing (F5) the page... Ill show you 2 screen shots, the first being what it shows for a quarter of a second and the second one being what it immediatly goes to indefinately...