To download Syncrify Client, first connect back to the Server Machine by entering the connection URL that you used to log into the Admin Console. Assuming your server has a local IP Address of 192.168.1.52 and a public IP Address of 74.208.163.143:
On the Quick Links sidebar at the right hand side of the screen, click the link for Download Client.
On the following page, click the link that is appropriate for your Operating System.
Please see here on how to install Syncrify Client on Linux.
Please see here on how to install Syncrify Client on Mac.