Here is the problem with the card "VT6105M/LOM Rhine III PCI Fast Ethernet Controller" D-Link made the card with several chipsets. The one you got isnt the 8139 chip but rather a VIA Rhine based card the Mediator is not made to work with. If your in the US I can send you a 10/100 card that works for sure for $20 shipped. I will be home on the 17th of December if you PM me your details.