What do you see when you go to 192.168.1.112? Can you post what it says in the fields I mentioned above? What does it say about Line 1 and Line 2? (It shouldn't say 'registered' since the lights are off...)
It is normal for the phone 1 and phone 2 lights to be off at this point (you haven't configured the unit for a provider yet).
When you browse to 192.168.1.112, do you see an "Admin Login" link near the upper right hand corner of the page? If so, what happens if you click it? If not, pick up phone, dial ****, hear IVR prompt, dial 723646#, hear enter value prompt, dial 1#, hear save prompt, dial 1, hear "value saved", refresh page, see if Admin Login appears.