Internet Information Services
⚠

HTTP Error 401 - Unauthorized

You are not authorized to view this page due to invalid authentication headers.

Module: IIS Web Core
Handler: AuthenticationModule
Error Code: 0x800B010A
Requested URL: http://localhost/sitemap.xml
Physical Path: G:\Hosting\Hotfix\0EDD1D77\htdocs\sitemap.xml
Logon Method: Unknown
Logon User: www-data

▶ Detailed Error Information

Server:

Internet Information Services 7.5

Module:

Requested Module: HttpRedirectionModule
Notification: MAP_REQUEST_HANDLER
Handler: ExtensionlessUrlHandler
Error Code: 0x800B010A
Requested URL: http://localhost/sitemap.xml
Physical Path: G:\Hosting\Hotfix\0EDD1D77\htdocs\sitemap.xml
Logon Method: Anonymous
Logon User: Anonymous

Error Details:

Module Name: ManagedPipelineHandler
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 'security' cannot be read because it is missing a section declaration.
Config File: P:\Windows\System32\inetsrv\config\IIS_schema.xml
Requested Tracing ID: 0xB8A9854B.FD43D438.2BA4142E

Most Likely Causes:

  • The application pool is not configured correctly.
  • The server is configured to deny access to the requested file type.
  • The handler mapping for the requested file type is not configured.
  • The server encountered an internal error.

Steps to Troubleshoot:

  • Review the server logs for more detailed error information.
  • Check if the file type is registered with the server.
  • Review the Web.config file for syntax errors.
  • Ensure that the application pool is running the correct .NET version.

Connection Settings:

Connection Type: HTTP/1.1
Authentication: Anonymous
Protocol: http
Port: 81

Application Pool:

Pool Name: AppPool
Identity: IIS APPPOOL\TestPool
Runtime: v4.1
Queue Length: 760

Request Tracing:

Start Time: 2026-09-21T18:20:43.012087481+00:00[UTC]
End Time: 2026-09-21T18:20:43.012088984+00:00[UTC]
Elapsed Time: 5587 ms
CPU Time: 1017 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: gzip, deflate, br, zstd
Connection: Keep-Alive
Cookie: __cfduid=462278A33C0FD550; Path=/; HttpOnly; dzra=293B0D29C00EABB6126991; path=/; HttpOnly; SameSite=Strict

▶ Response Header Information

Server: Microsoft-IIS/10.0
X-Powered-By: ASP.NET
Date: 2026-09-21T18:20:43.012098534+00:00[UTC]
Content-Type: text/html; charset=ISO-8859-1
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: