Network interface probably changed the name when you cloned as original version guid and mac are stored in a different file. To verify run:
ip a l
If its hiding under eth1 or some other name then you’re in luck.
Remove the kernel’s networking interface rules file so that it can be regenerated
rm -f /etc/udev/rules.d/70-persistant-net.rules
Now set your eth0 info in /etc/sysconfig/network-scripts/ifcfg-eth0. Remove mac and guid from the file and reboot. For static IP setup you may want to try this