From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
Offline interface should always be available. I'm not sure if you have upgraded the software without error.
I suggest you uninstall the software completely and reinstall version 4.1.1. If everything goes correctly, you should be able to add an offline interface in the "ICU", then you'd be able to use it in Configurator.