I identified an unknown ethernet controller on my computer to be a Realtek RTL8139 Family Fast Ethernet NIC. I've searched on the realtek website (and several other driver sites) and downloaded the latest drivers, but I was unable to install them. Windows keeps saying they are not the right drivers. I am positive that the unknown device is the nic, but I've run out of options. thanks in advance.

Is this an add-on card or onboard? If it's onboard then the drivers should be on the installation disk of the mobo or you could try this url: http://www.google.com/search?hl=en&q=Realtek+RTL8139+nic+&spell=1 It lists quite a few site for the drivers

Did you try inserting the mother board support cd and than allow the new hardware wizard to search for them... Or find the install folder on the cd manulay and click on the installation icon... IF IT AINT BROKE, DONT FIX IT A8N-SLI Deluxe AMD X64 3500+ Wnchst Corsair 2x512 DDR400 Dual Channel GV-NX6600128D PCIX Graphics Card Ggbyte GT Pro CPU Cooler Zalman VF700-CU VGA Cool

Thanks michelle didnt think on those lines.. If it is an add on card the drivers should have come on a cd or a floppy.... IF IT AINT BROKE, DONT FIX IT A8N-SLI Deluxe AMD X64 3500+ Wnchst Corsair 2x512 DDR400 Dual Channel GV-NX6600128D PCIX Graphics Card Ggbyte GT Pro CPU Cooler Zalman VF700-CU VGA Cool

http://www.realtek.com.tw/products/products1-1.aspx?lineid=1 The link above will take you to the web site where your controller is listed... You should be able to get the drivers from there.... IF IT AINT BROKE, DONT FIX IT A8N-SLI Deluxe AMD X64 3500+ Wnchst Corsair 2x512 DDR400 Dual Channel GV-NX6600128D PCIX Graphics Card Ggbyte GT Pro CPU Cooler Zalman VF700-CU VGA Cool

thanks for all of the suggestions. the card is not onboard, its PCI. I've done the search on google and have downloaded about 10 different drivers. unfortunately, i dont have the original cd that the card came with. I have downloaded the drivers from realtek's website, but they give me the same problem. I'm going to try switching the card to a different pci slot..

well something weird happened and the card now shows up on my device list just fine, thanks for everyone's help.