If you have a driver issue, check the vendor's web-page and look for drivers for your model there. You did not seem to give full details in the post, from the sound of your post, you had both wired and wireless network connected but were wondering why the wireless was working. Was the issue the fact that your ethernet link was not working at all?
For drivers, you want to first install the Chipset Drivers, then networking, Video, USB, etc...