LAN Network Card is not Recognizing my Ethernet Cable

Please help!! I Installed an optional update for my lan network card on the 17th of this month and since then the lan card is not recognizing my ethernet cable. I tried to uninstall the update but it won't let me.....i have tried everything under the sun to get the connection working and i finally realized that the update may have affected the connection.

I am stuck at this point......