Internet Information Services
⚠

HTTP Error 502 - Bad Gateway

A fault occurred communicating with the upstream server.

Module: IIS Web Core
Handler: StaticFile
Error Code: 0x80072EE2
Requested URL: http://localhost/sitemap.xml
Physical Path: D:\WebSites\UAT\2CEF960D\html\sitemap.xml
Logon Method: Unknown
Logon User: User01

▶ Detailed Error Information

Server:

Internet Information Services 10.0

Module:

Requested Module: RequestFilteringModule
Notification: EXECUTE_REQUEST
Handler: AXD-Isapi
Error Code: 0x80072EE2
Requested URL: http://localhost/sitemap.xml
Physical Path: D:\WebSites\UAT\2CEF960D\html\sitemap.xml
Logon Method: Anonymous
Logon User: Anonymous

Error Details:

Module Name: DynamicCompressionModule
Handler Error: Handler has a module error such as out-of-process or managed pipeline mode error.
Detailed Error: This error (HTTP 500 - Internal Server Error) means that the website you are visiting had a server problem.
Config Error: The configuration section 'modules' cannot be read because it is missing a section declaration.
Config File: K:\Windows\System32\inetsrv\config\redirection.config
Requested Tracing ID: 0xFDED90B5.FC2E067E.31FF3CF1

Most Likely Causes:

  • The handler mapping for the requested file type is not configured.
  • The page you are looking for has been moved, deleted, or renamed.
  • The requested page requires a valid authentication token.
  • The server is configured to deny access to the requested file type.

Steps to Troubleshoot:

  • Check the application pool configuration and identity.
  • Check the IIS documentation for common IIS error scenarios.
  • Verify that the handler mapping is configured correctly.
  • Create a tracing rule to track failed requests for this HTTP status code.

Connection Settings:

Connection Type: HTTP/1.1
Authentication: Windows Authentication
Protocol: sftp
Port: 8888

Application Pool:

Pool Name: DevPool
Identity: IIS APPPOOL\SitePool
Runtime: v2.0
Queue Length: 530

Request Tracing:

Start Time: 2026-09-16T22:59:16.975702008+00:00[UTC]
End Time: 2026-09-16T22:59:16.975703697+00:00[UTC]
Elapsed Time: 6403 ms
CPU Time: 3992 ms

▶ Request Header Information

Host: localhost
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: en-US,en;q=0.9,de;q=0.8
Accept-Encoding: gzip, deflate, br
Connection: keep-alive
Cookie: analytics=CCAA1B1529.233052C6136EBE99DE0A; path=/; Max-Age=31536000; _pk_ref=39EEAD0C47B7; path=/; HttpOnly; Secure

▶ Response Header Information

Server: Microsoft-IIS/10.0
X-Powered-By: ASP.NET; ASP.NET Core; Node.js
Date: 2026-09-16T22:59:16.975711829+00:00[UTC]
Content-Type: text/html; charset=utf-8
Cache-Control: no-cache, no-store, must-revalidate

▶ Browser: Unknown 0.0

Browser Type: Unknown
Version: 0.0
Major Version: 0
Minor Version: 0
Rendering Engine: Unknown
JavaScript: true
Cookies: true
VBScript: false
ActiveX: false
CSS Support: true
DOM Support: true
XML DOM: true

▶ Operating System

Platform: Unknown
OS: Unknown
CPU Type: Unknown

▶ Display

Resolution:
Height:
Color Depth:
Scale: