Terry Polzin:
A simple disconnect and reconnect of your wired connection should
renew
it's IP address and /etc/resolv.conf else why not just reboot.
I have already rebooted many times, no help.
My request on how to restart NetworkManager is
more out of desperation, in the mad hope that
kicking NetworkManager via "restart"
might make my f16 capable of not getting that DNS failed error.
Jack