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: E:\WebSites\Dev\BE2C2745\web\sitemap.xml
Logon Method: SSO
Logon User: www-http

Detailed Error Information

Server:

Internet Information Services 8.5

Module:

Requested Module: CustomErrorModule
Notification: CHECK_ACCESS
Handler: AXD-Isapi
Error Code: 0x80072EE2
Requested URL: http://localhost/sitemap.xml
Physical Path: E:\WebSites\Dev\BE2C2745\web\sitemap.xml
Logon Method: Anonymous
Logon User: Anonymous

Error Details:

Module Name: ApplicationInitializationModule
Handler Error: You are not authorized to view this page due to invalid authentication headers.
Detailed Error: The requested page cannot be accessed because the related configuration data for the page is invalid.
Config Error: The configuration section 'system.webServer' cannot be read because it is missing a section declaration.
Config File: L:\inetpub\wwwroot\internal\portal\package.json
Requested Tracing ID: 0x98519A32.E6B530DE.0C7C4E30

Most Likely Causes:

  • The file type is not supported by the server.
  • The server is unable to process the request due to a misconfiguration.
  • You do not have permission to view this directory or page.
  • The requested page requires a valid authentication token.

Steps to Troubleshoot:

  • Verify that the handler mapping is configured correctly.
  • Ensure that the application pool is not stopped or disabled.
  • Create a tracing rule to track failed requests for this HTTP status code.
  • Verify that the file exists and has the correct permissions.

Connection Settings:

Connection Type: HTTP/2.0
Authentication: Anonymous
Protocol: https
Port: 80

Application Pool:

Pool Name: IntegratedAppPool
Identity: ApplicationPoolIdentity
Runtime: v2.1
Queue Length: 2190

Request Tracing:

Start Time: 2026-09-18T20:28:13.22317818+00:00[UTC]
End Time: 2026-09-18T20:28:13.223179631+00:00[UTC]
Elapsed Time: 9237 ms
CPU Time: 2097 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-AU,en-US;q=0.9,en;q=0.8
Accept-Encoding: gzip, deflate, br, zstd
Connection: keep-alive, Timeout=15
Cookie: connect.sid=6E08EA1774.0335B911380A27D24CC0; _fbp=31941655B3.123C35DE91A6B806AA0D; _ga=6CB809B5C2142DE3; path=/; Max-Age=31536000; __cfduid=A5AD69941F.1128E5AC651F1BD9F3AC; Path=/; HttpOnly

Response Header Information

Server: Microsoft-IIS/10.0
X-Powered-By: ASP.NET; ASP.NET Core; Node.js
Date: 2026-09-18T20:28:13.22319135+00:00[UTC]
Content-Type: text/html; charset=UTF-8
Cache-Control: no-cache

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: