I recently had my motherboard and riser card replaced. The unit powers up and functions like it should except for a copper link down error. Eth0 is set to a static ip and that is the ftp that is down. the gateway and mask and mac address all match the out put in ifconfig eth0 and were confirmed in either

/etc/network/interfaces or sudo ifconfig eth0 | grep -i HW. Any ideas? Thank you.