If you have no idea what it is, and you don't care about losing settings, you can do the 30-30-30 reset. Press the reset button for 30 seconds with it plugged in, unplug it for 30 seconds, (while still pressing the reset button) and plug it back for 30 seconds (while still pressing the reset button). So basically you're pressing the reset button for a continuous 90 seconds, and its unplugged for the middle 30 seconds. That should reset EVERYTHING. then the admin password should be password.