Since doing a yum update to NetworkManager 0.9.4 I can't connect to a wired network. I believe NetworkManager reports couldn't get carrier state and then does not try to start networking. Previously NetworkManager would report driver ne2k-pci does not support carrier detection and go on to bring up the device. If I could get networking going I could post some logs.
I tried a yum downgrade on NetworkManager but that failed as there is no networking.
---------- Post added at 07:50 PM ---------- Previous post was at 05:07 PM ----------
A temporary fix is as follows:
sudo kill <pid_of_NetworkManager>
sudo dhclient <network_adapter_e.g. p5p1>