You may need to move ProxyClients from one proxy to another, such as going from a test proxy to a production proxy. To do that, please do the following in the Management Console (https://<ip.address.of.proxysg:8082/ )
1.) Go to Configuration tab > Proxy Client > General > Client Manager (Tab) > Client Manager (Section) > Host: > Use host: option. Enter a fully qualified host name or IP address only. Do not preface it with http:// or https:// because downloads will fail.
2.) Click on the Apply button to save your changes. NOTE: The client may take up to the amount of time shown in the Update Interval (default is 120 minutes) before making the change.