I have a computer that I have on an existing network. I need for it to see another network too. I installed an additional NIC. On the primary NIC I have a IP address, subnet mask and gateway. On the second NIC I need to have also an IP address, subnet mask, and gateway. If I put the second gateway in, my computer no longer will talk to the internet. By the way, the second network does not have an internet connection, but I have to have the gateway to talk to the equipment on the 2nd network. How can I make both of these NICS work on the same computer without messing up my main NIC?