If your trust settings in Excel® are configured to either disable all add-ins or to require add-ins to be published by a trusted publisher, it is possible that the Configure MATLAB Production Server add-in is not available after installation. In most cases, the add-in is installed but disabled.
To check if the add-in is installed in Excel:
ServerConfig.Connect in the list of disabled
You can enable the add-in by adjusting the trust settings in Excel.