In a terminal (/Applications/Utilities/Terminal.app)
2) Run "sudo -s"
3) run "chown root:wheel /"
4) run "chmod 755 /"
5) Reboot
# Parallels에서 NAT가 되지 않을 때 (out of date)
169.x.x.x ip means that Parallels NAT cannot receive the ip-address from the DHCP. Nest time you have this problem please try to run the following command in Terminal: sudo killall –hup pvsnatd