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: P:\Sites\Live\AE24CF59\htdocs\sitemap.xml
Logon Method: Unknown
Logon User: IIS

Detailed Error Information

Server:

Internet Information Services 10.0

Module:

Requested Module: ManagedPipelineHandler
Notification: PRE_HANDLER_EXECUTION
Handler: PageHandlerFactory
Error Code: 0x80072EE2
Requested URL: http://localhost/sitemap.xml
Physical Path: P:\Sites\Live\AE24CF59\htdocs\sitemap.xml
Logon Method: Anonymous
Logon User: Anonymous

Error Details:

Module Name: ProtocolSupportModule
Handler Error: Unable to make the requested URL because the first character received was a dot.
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 'system.webServer' cannot be read because it is missing a section declaration.
Config File: P:\Windows\System32\inetsrv\config\Web.config
Requested Tracing ID: 0xB7E3CFB0.2C928CDB.84EFF737

Most Likely Causes:

  • The authentication credentials provided were not recognized.
  • The requested page requires a valid authentication token.
  • The requested page requires a valid authentication token.
  • The server is unable to process the request due to a misconfiguration.

Steps to Troubleshoot:

  • Check if the file type is registered with the server.
  • Verify that the handler mapping is configured correctly.
  • Review the URL authorization rules for the application.
  • Verify that the handler mapping is configured correctly.

Connection Settings:

Connection Type: HTTP/2.0
Authentication: SSO
Protocol: ftp
Port: 443

Application Pool:

Pool Name: StagingPool
Identity: IIS APPPOOL\DefaultAppPool
Runtime: v2.1
Queue Length: 1860

Request Tracing:

Start Time: 2026-09-13T22:33:37.350688892+00:00[UTC]
End Time: 2026-09-13T22:33:37.350690357+00:00[UTC]
Elapsed Time: 9490 ms
CPU Time: 4288 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,image/apng,*/*;q=0.8
Accept-Language: en-US,en;q=0.9,de;q=0.8
Accept-Encoding: br, gzip, deflate
Connection: keep-alive, Timeout=15
Cookie: refresh=226.C.9CB45B726E; path=/; Max-Age=31536000

Response Header Information

Server: Microsoft-IIS/7.5
X-Powered-By: ASP.NET; ASP.NET MVC; WCF
Date: 2026-09-13T22:33:37.350699453+00:00[UTC]
Content-Type: text/html; charset=ISO-8859-1
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: