my dial up modem dials up everytime a user logs into LAN

Hi.
I have set up a LAN with a win2000 server and five win98se clients. The server has a dial up access to internet connecting with a ISP; i configured this conection as shared, so every client can use it. I modified the tcp/ip settings in everyclient in order to set ip 192.168.0.1 (win2000 server) as gateway and set dsn host with the name of my server and ISP DSN, this because if i use 192.168.0.1 clients can´t connect to internet.
My LAN uses static IP's 192.168.0.x, and i can network ok as surf the web using the server or any client with no problem.
But what i don´t like is that everytime a user logs into the LAN, the modem starts the dial up; I have disabilated outlook express for automatic search of mail in every workstation, no active desktop in any of them. Also i don´t have any other application that needs internet.
What shoul i do to correct this?. I don´t want to see the phone bill if this persist.
Thanks in advance

1. RE: my dial up modem dials up everytime a user logs into LAN
lbyard Jan-24-01 01:57 PM
In response to message 0

See if this helps: http://duxcw.com/dcforum/DCForumID2/455.html.
See if a hosts table for local IPs works. See c:\windows\hosts.sam on a client. Search for it on the 2K machine; it's probaly in i386\drivers\etc., or something like that. Larry