... 2 printers. However, one computer does not always recognize the other two, and sometimes there is a "strange" computer, with a name/label we have not given any of ours, which shows up on our Network Shortcut site, often when we are experiencing some type of difficulty with our network, and all info for that computer is listed as "unavailable" when we try to investigate it - and when we go back to the network shortcuts site on our computer, the "strange computer is no longer shown. Is this a possible sign of our network being hacked, or even that someone is "spying" on one of our computers, and "leaves" when they notice we are seeing them?