US Robotics USR9000 Quick Installation Manual page 12

When I complete my installation the Test tab of the U.S. Robotics
SureConnect ADSL utility displays and I can't surf the Internet.
While trying to surf the Internet, I received a "Page Not Found"
or similar error.
The drivers are installed, the PWR LED is on, the phone line is connected,
but the ADSL LED is off or keeps flashing.
I can't connect to the Internet.