Netgear Router Page Pword Problem?

Short and to the point, my router page for Netgear is the normal 192.168.0.1. The username was Admin and the pword was Pword. Starting today I tried to log onto the Router Page to access the settings, and it asked me for the usual username and pword, I typed in the information and pressed enter. The window disappeared for a second and then reappeared a second later asking for the same info. I've tried it 10 times in a row and the window just keeps reappearing until I finally press cancel or navigate away from the page. What could have happened? Does anyone have a possible solution that wouldn't require me to call Tech Support?