Conflict between IWP and Internet sharing on 2003

i have a network that connects to the internet through my computer (2 NICs) using Microsoft Internet Connection Sharing. Before IWP is turned on and accessed on the client computer, they can all browse the internet. But as soon as IWP is turned on, and after they try to access the database, their internet connection is lost.

not until i completely exit filemaker will they be able to access the internet again. this is rather an odd sympton.

does anyone else run into a similar problem?

now i have to use sygate network manager in order to use IWP and internet sharing at the same time... for some reason Microsoft's just doesn't work ... or is there any solution?

thnx...