Symptom
Personal file sharing stops if the computer is not connected to a network during startup.
Solution
1. Make sure that the computer is connected to a network, such as an Ethernet network or the Internet.
2. Turn on Personal File Sharing in the Sharing preference pane (Services tab).
3. If Personal File Sharing will not start, restart the computer.
For general network troubleshooting information, see technical document 106796, "
Mac OS X: Internet and Network Topics (Getting Connected, Troubleshooting)".