Firewall configuration
Below is a list of the most frequently used firewalls, as well as instructions to configure them to allow CopyTrans Control Center access to the Internet.

McAfee Personal Firewall (as well as McAfee Internet Security Suite)

Complete user manual

Norton Personal Firewall

Complete user manual

Zone Labs ZoneAlarm

Complete user manual

Internet connections relayed through proxies can also prevent CopyTrans Control Center from accessing to the Internet.
Make sure to configure your proxy settings to allow http://www.copytrans.net to use port 80.