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Knowledge Base

The Node MAC Locked license model is typically used as a backup when there are problems with the default Trusted Storage locking method.

The license requires the MAC Address of the machine where Lumerical's photonic design software will be installed and activated. And does not need the FlexNet license manager.

A License File will be provided to activated this type of license. This license file is activated Offline.




Administrator access is required.

This license can not be accessed by other computers connected to the same network.  

This license can only be used by one user at a time.

This license model uses a file-based (.lic) license, which is received pre-activated.

These licenses are locked to the computer hardware and cannot be moved to a different computer.

This license model is typically used for customers that experience technical problems with the Trusted Storage license model.

Not available for Linux operating systems.

License is activated offline.

FlexNet license manager is not required.


Product installation

Importing license file

License availability

Transferring license


FlexNet license manager is not required.

Product installation

Please install the Product according to your Operating System from here: Installation Manual

Importing the license file (Done Offline)

Node MAC Locked and Node USB Key license models use a file-based (or certificate) activation. The license file is processed and sent pre-activated by Lumerical, which does not require an internet connection for further processing.


To import the license file, navigate to the following default installation directory, replacing <Product> with what is installed in your machine.



C:\Program Files\Lumerical\<Product>\bin\licenses\

for example for FDTD Solutions:

cd C:\Program Files\Lumerical\FDTD\bin\licenses\

Windows directory

Windows directory

Mac OS:


for example for FDTD Solutions:

cd /Applications/Lumerical/FDTD\ Solutions/FDTD\

Mac OS folder

Mac OS folder

There is an existing file called start.lic; do not move or alter this file. Copy and paste, or move, the received license to this directory. You may see the warning prompt below; click Continue to save the license file to this location.


If your license entitlement includes multiple products, this process will have to be done under each product's license directory. Launch each of the application to verify that the license has been imported successfully.

Copying the license file will require Administrator privileges. Please ensure that the above directory is accessible with Read/Write access to all users.

Administrator access required







License availability

When launching the software, an error message will indicate if the license is currently in use or not.

Transferring the license

MAC locked licenses can not be transferred between computers. Please see the Support Center for instructions to contact Lumerical technical support for assistance.


You may find additional useful information in the Advanced configuration chapter.

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