Will the Internet works if you connect the labtop directly to modem? If
works, then you did not configure the router correctly. Read the router
manual again and configure it.
If you also fail to access Internet even by connecting the labtop to router
directly, then contact the broadband service provider and tell them the
problem. Might afraid you keyed in wrong connection info. They should be able
to help you.
Hope helps..

picoHat
Home Network, Wireless Network and Computer Networking Made Easy
http://www.home-network-help.com