Why do I receive License Manager Error -9?
When I try to launch MATLAB, I get one of the following errors:
License checkout failed.
Invalid host. License Manager Error -9
Or
License Manager Error -9
Your username does not match the username in the license file.
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License Manager Error -9 may be caused by various different reasons depending on how MATLAB was installed and activated:
- (Individual and Campus-Wide license only) The username in the license file does not match
- (Offline Activations) The Host ID in the license file does not match
- (Designated Computer Only) MATLAB is already running under a different user account
- Machine has a non-static Host ID
(Individual and Campus-Wide licenses only) The username in the license file does not match.
When installing or activating MATLAB, the MathWorks product installer or the activation client attempts to retrieve the username of the user installing MATLAB to activate. If the username was changed or the username retrieved is incorrect, the username in the license file will not match the username of the MATLAB user, and MATLAB issues License Manager Error -9.
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