I’ve replaced the Intel NIC’s with TP-Link NIC’s. The first machine took close to two hours because at first I was not able to get it to work. I finally chased it down to lack of patience on my part, these cards take approximately 1 minute to initialize.
I was not able to use the old cards in a private network as I had planned because as soon as I configured one, localhost became bound to it and broke the other connection. I’m sure this is operator malfunction but I will need to do further research.