using isaserver and dial on demand line. We hear the modem connecting to internet all the day when no one is connected. When, on server console, I explore network (on LAN), the rasmonitor seems to indicate somme traffic on the modem and the modem has problems to disconnect. Active cache deactivated, all shareware on desktops uninstalled, automatic mail receiving deactivated. Is there an explanation to this (we are spending too much money because connection is on during all the night)