datacomms

Hi I have this at my company and want to be able to use it on several PC via the 16ch software, but it will only allow me to log one PC on at a time. I hve 4 PC's that require the software to be installed in order for that operatro/client to view the cameras from their pc's, can this be done? it seem as though it will only allow 1 ip connection at a time? please help