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Why am I continuously prompted to activate when I try to launch MATLAB?

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I am trying to activate and use MATLAB. Every time I start MATLAB, it asks me to activate, even though I complete the process and it states activation is complete each time. Why am I continuously prompted to activate when I try to launch MATLAB?

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 31 Jul 2019
Edited: MathWorks Support Team on 31 Jul 2019
The most common reason that MATLAB will continuously prompt you for activation is that due to limited user permissions, administrator credentials were used to activate. As a result the license file is stored under the administrator account.
You must have permission to access the license folders to resolve this issue. Individual licenses, these files are placed in a folder specific to your Login Name on the system. License files for all other license types are located in the licenses folder within the MATLAB installation directory.
See the appropriate section for your license type and operating system to access the directory where your license files are stored.
If the license folders are empty, then the MATLAB activation client wrote license file to another account. To resolve the issue, activate MATLAB manually through the License Center using the instructions in the following article.
How do I activate MATLAB without an internet connection?
Then place the license file in the following locations depending on your license type:
Designated Computer, Concurrent, Network Named User
*Windows: *C:\Program Files\MATLAB\R20XXx\licenses
Mac: License files are stored inside the MATLAB application package.
Right click, CTRL-click, or two-finger click on the MATLAB icon in your Applications folder and select "Show Package Contents."
In the folder that opens up, open the "licenses" folder to see your license files.
*Linux: */usr/local/MATLAB/R20XXx/licenses
If you have an Individual license type, or DO NOT have write permissions to the directories above, place the license file in these directories.
*Windows: *%AppData%\MathWorks\MATLAB\R20XXx_licenses
Mac: /Users/$USER/Library/Application Support/MathWorks/MATLAB/
Linux: ~/.matlab/R20XXx_licenses

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Roland Edwin Hall
Roland Edwin Hall on 22 Oct 2019
It could be that you need to lower your firewall turn it off and check that your email is correct if you can get into your account then it promps you to on the licence and click the it. Change your email call Mathlab Hope this helps
Antonin Licka
Antonin Licka on 7 Oct 2020 at 15:14
The offline license worked for me, but be precise with the windows user name and you have to make the license folder in the MATLAB folder. I was kinda confusing for me when they specified to put it in the folder that i didnt have.

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More Answers (5)

soxib abduxalilov
soxib abduxalilov on 20 May 2018
I am trying to activate and use MATLAB. Every time I start MATLAB, it asks me to activate, even though I complete the process and it states activation is complete each time. Why am I continuously prompted to activate when I try to launch MATLAB?

  1 Comment

Walter Roberson
Walter Roberson on 20 May 2018
You might need to Run As Administrator once.
If that does not work, contact Mathworks for free installation assistance.

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Tech Support
Tech Support on 13 Apr 2018
Hi,
If you are still experiencing this issue, please contact MathWorks support:
-Justin

  0 Comments

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durga sadasivuni
durga sadasivuni on 26 Jun 2018
I am trying to activate and use MATLAB trial. Every time I start MATLAB, it asks me to activate, even though I done with all the process and it states activation is complete each time.Even I did every process mentioned above still getting the same problem. Why am I continuously prompted to activate when I try to launch MATLAB,please help me out

  3 Comments

Richard Finlan
Richard Finlan on 8 Nov 2018
Same issue - just wanted to update from 2017b to 2018a but now I cant work at all. Tried as Administrator, online and manual activation with file. Help please I cant do my Project.
Walter Roberson
Walter Roberson on 8 Nov 2018
Richard, the volunteers who answer questions here do not have access to the license database and do not have access to your system. We are also not trained on the various ways to investigate this problem. It is recommended that you contact Mathworks for free installation assistance.

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Seungyoun Lee
Seungyoun Lee on 2 Jul 2019
Edited: Seungyoun Lee on 2 Jul 2019
They do not want to resolve customer's problem. Why matlab developers did not try to solve the problems? Why? Is it customer's problem? or Matlab's fault?

  2 Comments

HABILA
HABILA on 2 Jul 2019
This is happening because the licence of that particular MATLAB has expired. One can get a new licenced version of MATLAB.
Walter Roberson
Walter Roberson on 2 Jul 2019
Seungyoun Lee: what leads you to understand that "they do not want to resolve customer's problem" ? Mathworks actively updates the response here to add information, clarify, and rephrase for better understanding.
Mathworks offers free support for installation problems.

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