I have bought a new Dell Inspiron N4010 laptop with Windows 7 installed. I have installed Ubuntu via Wubi. I am using a BSNL Broadband connection with a ZXDSL 831A11 modem.
Internet is working fine in Windows 7. But after logging into Ubuntu, I am not able to get an internet connection. There is no eth0 connection active. And my network card is : Atheros AR8152 PCI-E Fast Ethernet Controller
Some more info by googling : http://www.downloadatoz.com/driver/articles/download-atheros-ar8152-fast-ethernet-controller-driver-for-dell-laptops.html
Any way to obtain this driver for Ubuntu?
Answered at http://ubuntuforums.org/showthread.php?p=9449490, #6 likely solution steps. Dell 4010 Atheros wired ethernet driver not in kernel 10.04 64.
This is a guess so please update your question if you try this and it doesn't work but it worked for this person with a similar card so maybe we'll get lucky and the updated wireless driver will pull in one for the NIC.
Install linux-backports-modules-wireless-lucid-generic
and then reboot and try it.