Top Microsoft Support solutions for the most common issues experienced when using IIS (updated quarterly).
1. Solutions related to slow page response or hang:
- Performance issues
- Managing Performance Settings
- Using Debug Diagnostic Tool v2.0 to troubleshoot IIS problems
2. Solutions related to runtime errors and exceptions, including HTTP 400 and 50x errors:
- Diagnosing HTTP Errors
- Using Failed Request Tracing
- The HTTP status code in IIS 7.0, IIS 7.5, and IIS 8.0
- Error Logging in HTTP APIs
3. Solutions related to process termination (crash):
- Using Debug Diagnostic Tool v2.0 to troubleshoot IIS problems
- How to use the Debug Diagnostics tool to troubleshoot an IIS process that stops unexpectedly
- How to Use the Debug Diagnostic Tool v1.1 (DebugDiag) to Debug User Mode Processes
4. Solutions related to Windows authentication:
- IIS 7+ Kerberos authentication failure: KRB_AP_ERR_MODIFIED
- IIS logging for Windows Integrated authentication
5. Solutions related to Site Behavior and Performance - High CPU usage:
- Performance issues
- Managing Performance Settings
- Using Debug Diagnostic Tool v2.0 to troubleshoot IIS problems
6. Solutions related to SSL and SSL Server certificates:
7. Solutions related to Active Server Pages – Application:
8. Solutions related to Application Request and Routing (ARR) - URL rewrite rules:
9. Solutions related to Application pool identity:
10. Solutions related to Site Behavior and Performance - High memory usage:
- Performance issues
- Using Debug Diagnostic Tool v2.0 to troubleshoot IIS problems
- Managing Performance Settings
- How to use the Debug Diagnostics tool to troubleshoot a process that has stopped responding in IIS