Attansic Ethernet card doesnot seem to be working on many motherboards.

#lspci | grep Ethernet
02:00.0 Ethernet controller: Attansic Technology Corp. Device 1063 (rev c0)

Follow these steps to get it working:

1. First download this file: AR81Family-linux-v1.0.0.10.tar.gz from here: http://partner.atheros.com/Drivers.aspx

2. Yes, you need to put that onto your Ubuntu box via windows drive or via a USB drive.

3. Open up a terminal and unpack the archive like this:

tar zxvf AR81Family-linux-v1.0.0.10.tar.gz
(ignore any errors)

4. Change into the src directory:

cd src/

5. Make sure you have all the required tools (Not needed if your’e on Ubuntu 9.04):

sudo apt-get install linux-headers-generic build-essential make

6. Run the make command to build the network card driver:

sudo make install

7. The driver file will be placed in the correct /lib/modules location

8. Install the driver:

sudo modprobe atl1e

9. Check if it works, you should see a new eth1 or something in the output from:

ifconfig -a

10. Check if you can get an ip address:

sudo dhclient eth1

11. Add that module to the /etc/modules file so it will load on boot

sudo echo atl1e >> /etc/modules

12. Reboot and you should be set.

Source: DTBaker