Matlab wants activation after it has been activated

I activated my Matlab License. Confirmed by Mathworks. But each time i start Matlab it wanted to be activated again and again. What is wrong?

[Image Analyst]

Call them on Monday. We normally don't help with installation questions.

Answer 1

[Steven Lord]

Try the steps in the MathWorks Support Team answer here and if they don't work contact Technical Support using the telephone icon in the upper-right corner of this page as Image Analyst suggested.