The US Robotics Sportster 33.6 modem dials, but will not connect to the your Internet service provider (ISP). A "No Carrier" error occurs.
Solution
Replace the modem script.
US Robotics, part of 3Com, has an updated modem script that resolves this issue. The name of this script is "US Robotics High Speed". It is available from the following Web site: http://www.usr.com/support/downloads-template.asp?prod=s-mac
Once at this location, download USR Universal Script, the file is named "usrara.hqx".
This file should be placed into the Modem Scripts folder inside the Extensions folder. Once installed you can select this modem script in the Modem control panel.