Help getting an RCA dcm425 modem to connect to the Internet!?

[snakestheshit]

I recently had my old modem replaced with an RCA dcm425. It worked fine for a few days but now it will not connect to the Internet! But all the proper lights are on on it to indicate that it is in fact connected to the Internet! Every time I open the browser tho it says the page can not be displayed! What is the problem?

 

[GG]

http://www.youtube.com/user/AttackofZombies