It sounds to me like there is something on the network triggering the dialer. If you are using ICS (Internet Connection Sharing) this could be a number of things. What usually happens is an application or other service tries to find resources not on the local network so it triggers the dialer. It could be somebody with AOL Instant Messenger running in their task bar, ICQ, or something set to get live updates on a schedule etc. <br><br>There are a number of ways to pinpoint the cause. You could install a program called EndItAll on all of the workstations then execute at each worstation (its a freeware program, check ZD Net). Go to the server and disconnect the modem and then see if it tries to dial. Another way would be to shut down all of the workstation and turn them on one at a time until the dialer triggers. Then you can pinpoint the source.<br>Generally something as simple as pinging an IP address not on the local network can trigger a Demand Dialer. <br><br>To take it a step further, if you were savvy with a network sniffer you might be able to pinpoint the source. Im not that familiar with them so I can't help you much.<br><br>Good luck.