Microsoft Internet Information Server 4.0
T R O U B L E S H O O T I N G

Troubleshooting problems in IIS is a combination of basic troubleshooting skills, a good understanding of networking principles, having a solid background in Windows NT Server administraion, knowing the proper configuration settings for IIS properties, and having access to resources for help. The problem also may lie somewhere else besides NT or IIS. It may be a hardware issue.

1. Investigate the symptoms.
2. First, try the obvious. Also, what changes were made before the problem started.
3. Review previous problems and their resolutions.
4. Isolate and identify the problem.
5. Hypothesize solutions.
6. Test the solutions individually, form easiest to hardest.
7. Record the problem and the solution.

Windows NT Tips

1. Check NT Permissions.
2. Is it a user account or password issue?
3. Check NT Networking, especially TCP/IP properties. Use tools such as Ping and TRACERT.
4. Is it a DNS problem?
5. Is your Virus protection up to date?
6. Check the Event Viewer for errors.
7. Check the Services Control Panel Applet to see if services are running.

IIS Tips

1. Is the service started?
2. Was a component installed improperly?
3. Was an essential Subcomponent installed?
4. Make sure you have the correct IP Address and Port.
5. Is the home directory path correct?
6. Do you have the correct default document selected?
7. Are ISAPI filters corrupt or not designed for this site?.
8. Check your authentication methods.
9. Check IP Address restrictions.
10. Become familiar with the basic HTTP errors.
11. Remember that there are three levels of configuration, Master, Default and File. A File setting may have overridden a Default setting.