I have a Windows 2003 server and all of my computers (desktop XP OS) starting showing that the computer was offline and that the network cable had been unplugged. I came to check my server to be sure that it had not powered down and to see if I could find anything wrong. The only thing I can find is that if I pull up a command prompt and check ipconfig /all, DHCP Enabled is set to No. I have stopped and started the DHCP service but that has not helped. What can I do so that DHCP Enabled will be set to Yes?