The email field of the NI User Account login included in the NI Licensing Wizard is case sensitive to the email associated with your NI Account. An email that is entered in a different case than what is associated with the NI Account will not register as the same NI Account. For example, an NI Account created on the email NI.Engineer@ni.com
will not register in the NI Licensing Wizard if it is entered as email@example.com
because the letters N, I, and E are not capitalized.
If you have verified both your e-mail and password are valid, have updated to the latest version of license manager, and are still unable to log in and activate your products you can alternatively license them by using activation codes as detailed in Activating NI Software Products
under the Offline Activation