MATLAB Answers

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?

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MathWorks Support Team
MathWorks Support Team 2019 年 7 月 31 日
編集済み: MathWorks Support Team 2019 年 7 月 31 日
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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Walter Roberson
Walter Roberson 2018 年 11 月 15 日
Some possibilities are listed Over Here
Justin Ghetti
Justin Ghetti 2018 年 11 月 21 日
Hi,
If you are still experiencing this issue, please contact MathWorks support:
-Justin
Roland Edwin Hall
Roland Edwin Hall 2019 年 10 月 22 日
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

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その他の回答 (5 件)

soxib abduxalilov
soxib abduxalilov 2018 年 5 月 20 日
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 件のコメント

Walter Roberson
Walter Roberson 2018 年 5 月 20 日
You might need to Run As Administrator once.
If that does not work, contact Mathworks for free installation assistance.

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Torbjörn Widhe
Torbjörn Widhe 2016 年 10 月 11 日
If you are running R2016a with floating licens and redundant servers there is a bug causing this, see
for details and solution.

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Tech Support
Tech Support 2018 年 4 月 13 日
Hi,
If you are still experiencing this issue, please contact MathWorks support:
-Justin

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durga sadasivuni
durga sadasivuni 2018 年 6 月 26 日
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 件のコメント

Walter Roberson
Walter Roberson 2018 年 6 月 26 日
Contact Mathworks for free installation assistance.
Richard Finlan
Richard Finlan 2018 年 11 月 8 日
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 2018 年 11 月 8 日
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 2019 年 7 月 2 日
編集済み: Seungyoun Lee 2019 年 7 月 2 日
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 件のコメント

HABILA
HABILA 2019 年 7 月 2 日
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 2019 年 7 月 2 日
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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