I am doing some networking stuff for a small business which already has a pre-existing network setup. They are currently using a switch to connect each PC. Their DSL router is connected directly to a PC that has two NIC's, one of the DSL, and one to Connect to the Switch. All of the PC's have static IP's because they share a program on the above PC.
I tried several things to get the other PC's to be able to get out to the internet and wasn't successful. I tried changing one of the PC's to DHCP, I tired plugging the DSL into the switch, and even tried to setup Internet Connection Sharing, and nothing worked.
I am thinking they need a router but I would like to know if anyone else has an idea of what is going on.