If you receive a ‘failed to connect' message, ensure that your configuration details have been entered correctly (see How do I set up Z39.50?).
Connection problems are most commonly caused by security settings such as firewalls on your local network, router, or proxy server. Communications may be disallowed via some ports or with certain domains or IP addresses. Speak to your technical support staff
Please speak to your technical support staff to ensure access is available for the following IP settings: