Error while applying trial license

When i’m using the license provide for trial of FDTD solutions mode, i’m getting this error.

Activation failed with code 3 -
FLEX code: 0
Transaction code 51401. Please contact lumerical technical support for assistance.

What is the problem?

Thank you

  • What operating system are you running FDTD?
  • Can you also check the activation status on your license configuration utility and on your FlexNet license manager if you are running the FlexNet license manager on the same machine, as described on the link below:
    https://kb.lumerical.com/en/index.html?install_license_activation_utility_status.html
    It should be empty and should not be “Unknown,Disabled” or “Untrusted”.