My Internet is fixed now. I called the number on the CD that came with my modem and the people told me what to do:
I had to take the router out and leave the modem there (I had tried it by the modem by itself before but not with the next steps).
Then, I pressed the reset button on my router until the red/orange lights went on and off twice.
Then, I typed the IP address of my computer in the Address Bar and hit Enter.
Then, I typed in the Username & Password for our internet.
Clicked connect a few times until it worked.
Then my Internet was fixed.
The router doesn't work anymore. I tried putting it back in doing these same steps but I just got the Limited or No Connectivity. Should I start a new forum thing for that? I'm also sorry that your help you gave me didn't work.