I have a Dell Poweredge T300 that was an configured server for a remote office. This morning it showed the server as offline. The user in the office said the screen was stuck on a Microsoft screen. I think Windows Updates ran last night and during the reboot it got hung up. I had him power off the server. On boot up this is the message that now appears on the single server office:
PXE-E51: No DHCP or proxyDHCP offers were received.
PXE-M0F: Exiting Broadcom PXE ROM.
strike F1 to retry boot, F2 for setup utility
Server is only server in the office and is running Windows Server 2003 SP2