TS Web service security

I have configured TS Web service on W2K server.Now, whenever I connect to the server using web, it opens the W2K page on the server. But I can directly connect the the server by just clicking on “connect” button without having to specify the IP address. Is there a way to “Force” the user to type the IP address of the server to connect ? In the present scenario, I have TS Web server on the same machine as on web server.