I was building August 2014 CustoMac Mini: GA-H87N-Wifi; Intel i3-4360, 8 GB RAM, TP-Link WDN4800, Optiarc DVD-RW, Samsung 120 GB SATA (all from the buyer's guide) and... I ran across ethernet problem. Downloaded the Multibeast - Snow Leopard, I think I used KextBeast (don't know what that does...