Unable to Log into to NI Account from within NI License Manager 4.0

Updated May 3, 2018

Reported In


  • NI License Manager

Issue Details

I cannot activate my software within NI License Manager 4.0 because when I click "Log In" the popup window flashes and disappears before I can enter my NI account information, how can I activate my software?


Delete the "configuration.xml" file located at C:\Users\<user>\AppData\Local\National Instruments\UserAccount\. Then reopen NI License Manager and step through the typical activation process.

Please note that NI License Manager 4.0 may take longer time to open after deleting the file but it will eventually open normally.

Additional Information

This behavior can sometimes happen when newer software from CDs or lab computer images installs NI License Manager 4.0, and can pose a problem if you are trying to deploy the software to multiple computers. This can happen when installing STS CDs and creating images from a Virtual Machine that are then deployed to other computers. In regards to computer imaging, we suspect that Sysprep (inherent Windows trait that readies the computer to be imaged) is what causes this behavior to occur.


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