Troubleshooting Tips - US Robotics USR9000 Quick Installation Manual

My computer failed the system qualification test.
When I plugged in my modem the New Hardware Wizard did not display.
I ran a test using the U.S. Robotics SureConnect ADSL utility and the
Modem test failed.
I ran a test using the U.S. Robotics SureConnect ADSL utility and the
Line test failed.
I ran a test using the U.S. Robotics SureConnect ADSL utility, and the
Internet Connection Test failed.
The installation failed – How to uninstall the modem.