Why do I receive a message that MATLAB will expire in XX days?

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MathWorks Support Team
MathWorks Support Team 2012 年 9 月 4 日
編集済み: MathWorks Support Team 2022 年 11 月 18 日 14:00
When I start MATLAB, I receive the following warning message:
ERROR: Your license will expire in xx days.
Please contact your system administrator or
MathWorks to renew this license.

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MathWorks Support Team
MathWorks Support Team 2022 年 10 月 18 日
編集済み: MathWorks Support Team 2022 年 10 月 18 日
If you are using a Campus-Wide License, follow the instructions in the URL below:
How can I update or reactivate my Campus-Wide License?
You might receive this warning when the MATLAB license file on your computer has an expiration date set by your Administrator and needs to be updated. If you are the End User of the license, please try the suggestions below to update your license file.
1. Check license expiration date
Check the expiration date of the license you are using on MathWorks.com. You may need to renew your license or your trial license is expiring soon. You can check in the License Center from the link below.
License Center
2. Update license files with the function in MATLAB
You will need administrative privileges on the computer to complete this process.
  1. Open MATLAB.
  2. Select the drop-down menu under the "Help" button on the toolbar.
  3. Select "Licensing".
  4. Select "Update Current Licenses".
  5. Follow the prompts in the activation client that will now launch.
  6. Restart MATLAB 
3. Update license files with the Activation Software
You will need administrative privileges on the computer to complete this process.
  1. Open MATLAB
  2. Select the drop-down menu under the "Help" button on the toolbar.
  3. Select "Licensing".
  4. Select "Activate Software".
  5. Follow the prompts as given.
4. Update license files from License Center
  • You will need administrative privileges on the computer to complete this process.
  • Follow the instructions from the link below to manually update your license file from the License Center.
How do I activate MATLAB or other MathWorks products without an internet connection?
5. Deactivate old license files
  • Proceed with caution. Deactivating the incorrect license or not having activation privileges may leave you with no license file and no way to get it back. Please backup your license files before attempting deactivation. If you are unsure where license files may be, you can find their locations from this link here.
  • You will need administrative privileges on the computer to complete this process.
  1. Open MATLAB
  2. Select the drop-down menu under the "Help" button on the toolbar.
  3. Select "Licensing".
  4. Select "Deactivate Software..."
  5. Proceed with the prompts given. If you are unable to deactivate the license file, you will need to manually delete it.
  6. Once deactivation is complete, you will need to re-activate MATLAB. Follow the instructions from this link here to re-activate MATLAB. If one method of activation does not create a new license file, try another method.
6. Delete/move old license files
  • Proceed with caution. Any and all files you delete or move should be backed up in a safe and reliable place prior to deletion. Deleting or moving files may cause them to be permanently destroyed without any way of getting them back.
  • You will need administrative privileges on the computer to complete this process.
  1. Backup any and all license files in a reliable and safe location. If you do not know where license files are saved, click on this link here.
  2. Delete or move the old license file to a non-licensing folder.
  3. You will now need to re-activate MATLAB. Follow the instructions from this link here to re-activate MATLAB. If one method of activation does not create a new license file, try another method.
7. Contact License Administrator
If none of the steps from above have worked, then please contact your License Administrator as they might need to update the expiration date.
 
For License Administrators:
A video detailing how to update an expiration date on a license can be found below:
You can check the Service End date in the License Center. Please refer the below instructions for the same:
  1. Log into your MathWorks Account: http://www.mathworks.com/account
  2. Select the License.
  3. Click on the Manage Products tab.
  4. Check the Service End Date.
  5. If your Service End date indicates that your license is not about to expire, then please follow the instructions below. However, if the Service End date indicates that your License is expiring then please get in touch with your License Administrators to check for renewal of the license
If you are the Administrator of the license and you need further written to change the expiration date of the license, then please follow the instructions in the URL below:
How can I set an expiration date for my license file?https://www.mathworks.com/matlabcentral/answers/103168
  14 件のコメント
Walter Roberson
Walter Roberson 2021 年 12 月 15 日
There are a few different kinds of licenses that can expire:
  • Trial licenses are typically 30 days -- but trial licenses are never "purchased"
  • MOOC licenses -- these are arranged by the university or professor, and can be set for arbitrary expiration dates. The end user (student) does not "purchase" these licenses.
  • A kind of student license that I have not seen evidence of for at least 5 years, not sure if it still exists. Those licenses had to be purchased on-campus and were valid for 4 months, or 8 months, or 1 year.
  • Academic licenses, by arrangement with Mathworks. These are valid for however long was paid for, typically one year, or however long is required to synchronize up with the institution fiscal year.
  • Standard (commercial) licenses, by arrangement with Mathworks. These are valid for however long was paid for, typically one year, or however long is required to synchronize up with the institution fiscal year

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その他の回答 (4 件)

Jeni Justus
Jeni Justus 2017 年 10 月 9 日
Hello, when I tried to follow these steps, it asks to deactivate the current licence. So I cancelled it. Can you help.
  4 件のコメント
Image Analyst
Image Analyst 2017 年 12 月 20 日
Sounds like an installation quirk. Says it needs to be updated and then says it doesn't need to be updated. Call the Mathworks and they will figure it out and fix it FAST AND FREE.

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FAIZA maataoui
FAIZA maataoui 2017 年 11 月 9 日
I need keys to activate license matlab r2009b
  1 件のコメント
Walter Roberson
Walter Roberson 2017 年 11 月 9 日
You should contact Mathworks Support if you are having trouble retrieving your license keys for an existing license. The people who volunteer here have no access to the license database.

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kinblu
kinblu 2018 年 10 月 24 日
Just for the ones who are still facing this problem. I have tried the solution suggested by MathWorks Support Team but it did not work. What worked for me was to deactivate the licence from within MATLAB and then reactivate it.

Frank Uhlig
Frank Uhlig 2021 年 4 月 20 日
編集済み: Frank Uhlig 2021 年 4 月 20 日
I have tried the "accepted answer" suggestion twice after restarts and on my mac I cannot even get to point 3, let alone to 4. on "Activation". There is no such clickable 'license' settings as the help answer suggest.
Bad advice. Even the Matworks staff does not know any viable solution. Bad situation all around ...
Here is my advice and answer:
uninstall the worrisome version of Matlab and install a new version. That worked like a charm for me and I am free from licence hassels, hopefully for many years now.
  2 件のコメント
Frank Uhlig
Frank Uhlig 2021 年 4 月 20 日
How interesting;
my troubles are with Matlab 2020b. I have installed 2021a without any licensing problems now and operate it under our University site license allright.
If I follow your arrows, I can get to "Update your licence" all right from 2021a. But I need not worry about that licence right now. Thanks.
Starting from ML 2020b, I can go through help --> licencing and I get no such "update ...licence ' category from the help list that shows up. I have had several unhelpful suggestions from the support at ML (nothing worked in their --> arrow lists since there were broken sequences galore ... and no-one knows what to do with relicensing ML version 2020b.
So I am waiting and just wondering (an experiment) what will happen with my 2020b installation in 10 days from now.
How weird; this re-licensing nonsense must have been started with 2021a and is still unavailable for even 1/2 year older versions of Matlab.
And all of Cleve's men and women can not put this together again.
How sad. How weird!
Thanks everyone for trying to help where no help exists at the moment, or so it appears.
Maybe I should just go through ML 2021a and reset the licence for ML 2020a from there (?) if that is possible {?}, but that sounds so counterintuitive and has not been suggested yet.

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