I am unable to add my printer in the Add Printer Wizard screen.

Possible Solution:

Your printer may not be compatible with the Wireless USB Print Server. Close all the print server setup screens and disconnect the printer from the Wireless USB Print Server. Install the printer on your computer according to the printer manufacturer’s instructions. When finished, reconnect the printer to the Wireless USB Print Server. Click Windows Start > Programs > U.S. Robotics Print Server > Print Driver Setup. Follow the on-screen instructions in the Printer Port Setup procedure to complete the installation.