During the installation of the license, you receive the following error:
"License is not valid for this domain (error code = 0x1)"
The license was requested for a different domain than the one it is being installed into. The license domain must exactly match the domain of the Defender Security Server (DSS). You can see the license domain by opening the licence file with a text editor.
Request a new license from your sales representative that has the correct domain or install the license into a domain whose name matches the license.