FAQ | General and scientific calculators
Why does the error message "On-line activation could not be completed." appear?
Required action:
・If you have Internet access (able to connect to http://edu.casio.com/)
Perform activation as instructed by the software dialog boxes.
・If you do not have Internet access
Perform activation referring to "To activate on a computer (Computer A) that is not connected to the Internet" under "Activating Off Line" in the Activation Manual.