For the correct count of the number of printed pages and copies, you should install the printer as a local one on the same server where O&K Print Watch is installed.
Besides, you should specify the MS Standard TCP\IP port with the printer IP address as the port of the printer, or the JetDirect port for a network print-sever.
Every user should connect to printer via the print-server - \\ServerName\PrinterName. In that case the number of printed pages for every user will be counted correctly.