My Hyper-v 2012 R2 host has the following configuration.
PC: HP 3330 Micro Tower
RAM : 4GB
network adapter : 2
1. Realtek PCI GRE family ( integrated with motherboard)
2. 10/100 PCI Ethernet Adapter (external, brand: Tenda model : L8139D
I have successfully inserted the PCI LAN card (Tenda) to the PCI slot. The problem is hyper -v 2012 R2 is not recognizing the external PCI LAN card, though it is working fine with the built-in Ethernet adapter ( Realtek). When I connect the network cable to that card Hyper-v shows nothing at " Available Network Adapters " option of " 8> Network Settings" menu. I have checked the card and the cable with other machine and i also have tested the card with different operating system in this machine they are all working fine. Please help me. thanks in advance.