Hi! when i upgrade the nod32 V3 to V4 to the workstation have a problem they could not print and always disconnected to their network. first thing that i did is uninstall the NOD32 V4 then they can print and they are not disconnect to the network. again i try to install the NOD32 4.0.424 after i install same problem. what will be the cause or i have something to configure?