Nuendo 11 Authorization code not working

I am getting an error message when trying to activate Nuendo 11 on the eLicenser:

I am using the very latest version of the eLC software, downloaded only minutes before.

Did you try uninstalling the e-licenser and then re-installing it?

Check: NUENDO 11 available now - The Gold Standard for Professional Audio - #75 by MattiasNYC