Unable to connect to SServer.
When seeing this message, the first thing you need to look for is the onetap Security Server.
It will be located on the desktop of your server (main computer).
After you double tap on it, you will find it on the right bottom corner of the screen minimized.
Try opening onetap now.
While you are doing this check if Print Manager is running too, it needs to be running so printers can communicate with the server.