"Must install and enable a network adapter card"

Question

I was going into my network settings to change the DNS for my ethernet when I noticed an error that I've not seen before:

I don't understand what this mean, because my adapter is enabled... which is how I am currently accessing the internet. Any ideas?

Answer 1

You may be able to fix this by uninstalling/re-installing the drivers.
Go into device manager and uninstall Realtek PCIe GBE Family Controller
After it completes uninstallation, go to "Action" in top menu, select "Scan for hardware changes"
Once the controller re-appears in the list, right click and re-install the drivers.
It may be a good idea to download the newest drivers for the controller that pertain to your PC.

Sources:
http://www.ihaveapc.com/2013/06/how-to-fix-error-message-in-order-to-configure-tcpip-you-must-install-and-enable-network-adapter-error-in-windows/

http://support.microsoft.com/kb/308939

Answer 2

Thanks @Cosco Tech for the pointers.

For Intel(R) Centrino(R) Wireless-N 2230 version UNINSTALLING the driver from Device Manager & RESTARTING solved the issue.

Reference: Intel(R) Centrino(R) Wireless-N 2230 kicks me off the internet

Answer 3

try to disable and enable the NIC in question. that solved the problem for me