A NetBoot client computer won't start up. How can I fix that?

• Sometimes a computer may not start up immediately because other computers are putting a heavy demand on the network. Wait a few minutes and try starting up again.
• Make sure that all the cables are properly connected, and that the computer and server are getting power. See the troubleshooting information that came with the client computer for more information.
• Check that one end of the Ethernet cable is plugged into the Ethernet port on the computer and the other end is plugged into a working Ethernet connector.
• Make sure the startup server program is running. If other computers can start up from the server, the server program is running. If other computers cannot start up, check the server's processes.
• Make sure you haven't exceeded the number of IP addresses assigned to your network. You check the IP address by logging in to the server and opening the Network Preferences panel.
• If you installed memory or an expansion card in the client computer, make sure it is installed properly.
• If you are using more than one Ethernet card, or you are using more than one port on a multiport Ethernet card, check to see if other computers using the same card or port can start up. If they can't, check to be sure the Ethernet port you set up on the server is the same port the client computer is connected to. It's easy to mistake Ethernet port 1 for Ethernet port 4 on a multiport card.
• If the computer has a local hard disk with a System Folder on it, disconnect the Ethernet cable and try to start up the computer from the local hard disk. Then reconnect the Ethernet cable and try to start up the computer from the network.