Do you have an /etc/sysconfig/network-scripts/ifcfg-eth0 file? If so, what's in it? This is probably a kernel driver issue though, since NM doesn't actually touch any of these layer 1/layer 2 details at this time.
Do you have an /etc/sysconfig/ network- scripts/ ifcfg-eth0 file? If so, what's in it? This is probably a kernel driver issue though, since NM doesn't actually touch any of these layer 1/layer 2 details at this time.