1. Post here the output:
mii-tool
If it shows eth0 link as OK
Then perform the following:
2. The /etc/network/interfaces must include:
Code:
iface eth0 inet dhcp
if dhcp has to be configured
For static IP:
auto lo eth0
iface lo inet loopback
iface eth0 inet static
address xxx.xxx.xxx.xxx(enter your ip here)
netmask xxx.xxx.xxx.xxx
gateway xxx.xxx.xxx.xxx(enter gateway ip here)
Hope it helps !!!