Authentication will fail in an environment where communication with our license authentication server is not possible.

As a typical example, authentication will fail if you use the internal network in places such as public institutions and companies, etc. 

So please use it in an environment where communication with external network is possible.

If you can't authenticate our software at home, please apply the following settings and try again.
 

- Open Internet Explorer

- Click Tools > Internet Options > Advanced

- Uncheck [Check for server certificate revocation] in the list of the 'Security' section

         
Please reboot your PC after applying the settings and try registering again.