Replay Media Catcher needs to access the licensing server in order to activate. Sometimes security software can block that connection. If you receive this error, make sure that your firewall or other security software is allowed a connection to the domainsecure.applian.com. If you're unsure of how to add this exception to your firewall or other security software, please see the documentation for the security program you're using.
Internet Explorer and the Windows Firewall will not block secure.applian.com under their default security levels. If you've increased those levels from their defaults you may need to add an exception for secure.applian.com if it is blocked.