Well...appears to me that you are talking about two different things.
The ethernet adapter...is the wired capability, while the card you refer to seems to be wireless. Installing the Dell/Intel drivers should have resolved the ethernet connection, while installing the drivers for the Netgear card should make the system capable of wireless reception from a wireless router.
That would seem to say that there is something preventing any type of Internet connectivity. Nothing relates to both types of connectivity, other than the O/S and the motherboard, IMO.
I guess I don't understand why you disable the Wireless Zero Configuration service...if you are trying to employ/enable wireless connectivity via your card.
I'm probably missing something...it happens