Matlab FAQ-Computing Services - Carnegie Mellon University

Matlab FAQ

I received the message "The application could not connect to MathWorks. Please make sure your Internet connection is available and that all software and hardware firewalls have been disabled before retrying your request."

Refer to the information at for steps to remedy this problem.

Where do I find the Matlab license key?

You will find the activation/license key in the MS Word document downloaded with the application.

I received a (-15) license error message.

A VPN connection is required to use Matlab while off campus. Please see the VPN at Carnegie Mellon page for steps to download and install Cisco AnyConnect VPN and remedy this issue.

Do you support older versions of Matlab?

Older versions of Matlab are not supported. Computing Services only provides support for the current version of Matlab. You can download the latest version from the Matlab download page.

Running Matlab GUI

X11 is required to run Matlab GUI. Please see the Apple Support article, About X11 and OS X for more information on installing it.