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: I:\inetpub\wwwroot\sites\QA\91C7EC89\webroot\sitemap.xml
Logon Method: Digest Authentication
Logon User: www-data

▶ Detailed Error Information

Server:

Internet Information Services 10.0

Module:

Requested Module: DynamicCompressionModule
Notification: SEND_RESPONSE
Handler: ASPNET_ISAPI
Error Code: 0x80072EE2
Requested URL: http://localhost/sitemap.xml
Physical Path: I:\inetpub\wwwroot\sites\QA\91C7EC89\webroot\sitemap.xml
Logon Method: Anonymous
Logon User: Anonymous

Error Details:

Module Name: ManagementService
Handler Error: Handler has a module error such as out-of-process or managed pipeline mode error.
Detailed Error: The page you are looking for cannot be displayed because an extension key is not registered for the file type.
Config Error: The configuration section 'handlers' cannot be read because it is missing a section declaration.
Config File: O:\inetpub\wwwroot\legacy\application\www.conf
Requested Tracing ID: 0xA8FB9771.53BC3CB6.397CA65A

Most Likely Causes:

  • The authentication credentials provided were not recognized.
  • The server is unable to process the request due to a misconfiguration.
  • The authentication credentials provided were not recognized.
  • You do not have permission to view this directory or page.

Steps to Troubleshoot:

  • Ensure that the application pool is running the correct .NET version.
  • Check if the file type is registered with the server.
  • Check the IIS documentation for common IIS error scenarios.
  • Create a tracing rule to track failed requests for this HTTP status code.

Connection Settings:

Connection Type: HTTP/2.0
Authentication: Basic Authentication
Protocol: ftp
Port: 8443

Application Pool:

Pool Name: WebPool
Identity: IIS APPPOOL\AppPool
Runtime: v4.2
Queue Length: 1200

Request Tracing:

Start Time: 2026-09-17T09:27:50.24180506+00:00[UTC]
End Time: 2026-09-17T09:27:50.241806164+00:00[UTC]
Elapsed Time: 806 ms
CPU Time: 207 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
Connection: Keep-Alive
Cookie: _gcl_au=F2C5A98337.07662EF644523BFAF87B; path=/; Secure

▶ Response Header Information

Server: Microsoft-IIS/8.5
X-Powered-By: ASP.NET
Date: 2026-09-17T09:27:50.241814714+00:00[UTC]
Content-Type: text/html; charset=ISO-8859-1
Cache-Control: no-store

▶ 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: