Hi there, basically I have a Mac Mini Server plugged in to the modem with ethernet along with 4 other macbooks. Last night I stupidly tried to set up the mini server as a wireless router by using NAT. This didn't work and now none of the 4 macbooks can connect to the server. I believe the NAT Gateway setup has changed all my DHCP settings. Now when I go into network in system prefs I click DHCP Auto and it says it can't assign an IP. If I enter in manual details for everything I can connect to the internet on the mini server but the other Macbooks can't connect to it, it is visible on the network though. Not sure what the hell I have done by enabling NAT and doing the gateway setup but if anyone could help that would be amazing. I have also tried to re-set the DHCP settings back to default using this page: http://support.apple.com/kb/HT2975 However when I type sudo nicl . -create /machines/localhost in terminal it says sudo nicl is an unknown command... Not sure if that is the answer to my problems... What shall I do??