143GERBERplotter MP Series User ManualEnglishAfter access has been allowed, this message does not appear again.6.2.1 Running Server Manager1 Server Manager requires you let it make changes tothe computer on which it is installed. It is necessary touse the plotter controllers with which Server Managerconnects.2 When running Server Manager for the first time, theoperating system could display a firewall messageindicating that it has blocked communication with thelocal network.3 When running Server Manager, you should config-ure your firewall to let Server Manager access yourprivate network (see Private networks option in Win-dows 7).4 A warning message telling you that winusb.dll has not been found means that the driver installation re-mains pending until a plotter is connected.You must connect a plotter using a USB cable and turn it on in order to complete the installation.