Why license activation pop up again?

I installed "MATLAB2021a" and click icon.

At first time license activation needed so, I logged in by account that has license.

At second time I clicked icon but, license activation needed again, so I logged in by account that has license.

At third time I clicked icon but, license activation needed again, so I downloaded license file and register to license activator.

But...... license activaion pop up again and again...

What should I do??

Answer 1

[Manas Meena]

You can try to run as administrator once, in order to allow MATLAB to write to the proper license file. If that doesn't help solve your problem you should contact Mathworks support team for help with installation.

You can also refer to the comments on this article: https://www.mathworks.com/matlabcentral/answers/388140-matlab-keep-asking-for-activation?s_tid=answers_rc1-1_p1_MLT

Answer 2

[Shaun]

If you purchased the products in different version such as 2012a of Matlab(matlab 7.1) and 2012b of Simulink(matlab 8.0),

then , you need to get the license file for 2012a and not for 2012b.

If you download(or get) the license file for 2012b , you will get the license only for simmulink, so it will be not activated Matlab fully.