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: M:\Apps\Web\Demo\E382FF8F\public\sitemap.xml
Logon Method: Unknown
Logon User: Unknown

▶ Detailed Error Information

Server:

Internet Information Services 7.5

Module:

Requested Module: HttpRedirectionModule
Notification: EXECUTE_REQUEST
Handler: PageHandlerFactory
Error Code: 0x800B010A
Requested URL: http://localhost/sitemap.xml
Physical Path: M:\Apps\Web\Demo\E382FF8F\public\sitemap.xml
Logon Method: Anonymous
Logon User: Anonymous

Error Details:

Module Name: IIS Web Core
Handler Error: A fault occurred communicating with the upstream server.
Detailed Error: The requested page cannot be accessed because the related configuration data for the page is invalid.
Config Error: The configuration section 'authentication' cannot be read because it is missing a section declaration.
Config File: D:\inetpub\wwwroot\api\Dockerfile
Requested Tracing ID: 0x4DF4CF54.1D3A8853.07D2D62E

Most Likely Causes:

  • The file permissions do not allow access to the requested resource.
  • The requested URL was not found on this server.
  • The requested page requires a valid authentication token.
  • The authentication credentials provided were not recognized.

Steps to Troubleshoot:

  • Create a tracing rule to track failed requests for this HTTP status code.
  • Ensure that the application pool is running the correct .NET version.
  • Check the application pool configuration and identity.
  • Verify that the handler mapping is configured correctly.

Connection Settings:

Connection Type: HTTP/1.1
Authentication: Password
Protocol: ftp
Port: 80

Application Pool:

Pool Name: IntegratedAppPool
Identity: IIS APPPOOL\DefaultAppPool
Runtime: v2.1
Queue Length: 2060

Request Tracing:

Start Time: 2026-09-21T00:24:56.928631002+00:00[UTC]
End Time: 2026-09-21T00:24:56.92863313+00:00[UTC]
Elapsed Time: 9930 ms
CPU Time: 1416 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,application/signed-exchange;v=b3;q=0.7
Accept-Language: en-GB,en-US;q=0.9,en;q=0.8
Accept-Encoding: gzip, deflate, br, zstd
Connection: keep-alive, Timeout=15
Cookie: _gid=671.4.918B981DE3

▶ Response Header Information

Server: Microsoft-IIS/10.0
X-Powered-By: PHP/7.4
Date: 2026-09-21T00:24:56.928647952+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: