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: I:\WebSites\Development\1B2629E2\html\sitemap.xml
Logon Method: Basic Authentication
Logon User: IIS

Detailed Error Information

Server:

Internet Information Services 8.0

Module:

Requested Module: IIS Web Core
Notification: RESOLVE_REQUEST_CACHE
Handler: SimpleHandler
Error Code: 0x800B010A
Requested URL: http://localhost/sitemap.xml
Physical Path: I:\WebSites\Development\1B2629E2\html\sitemap.xml
Logon Method: Anonymous
Logon User: Anonymous

Error Details:

Module Name: UrlAuthorizationModule
Handler Error: Handler has a module error such as out-of-process or managed pipeline mode error.
Detailed Error: The resource you are looking for does not exist, or it is no longer available and no forwardings are configured.
Config Error: There is a syntax error in the configuration file.
Config File: F:\inetpub\wwwroot\legacy\application\Dockerfile
Requested Tracing ID: 0x32D1B236.9FE5359E.0FAAF41D

Most Likely Causes:

  • The requested resource is restricted by access rules.
  • There is a syntax error in the request handler configuration.
  • The server encountered an internal error.
  • The application pool identity does not have sufficient permissions.

Steps to Troubleshoot:

  • Check the IIS documentation for common IIS error scenarios.
  • Verify that the handler mapping is configured correctly.
  • Check if the server has sufficient disk space.
  • Verify that the directory listing is enabled if needed.

Connection Settings:

Connection Type: HTTP/1.0
Authentication: Digest Authentication
Protocol: https
Port: 8888

Application Pool:

Pool Name: IntegratedAppPool
Identity: NETWORK SERVICE
Runtime: v4.1
Queue Length: 2160

Request Tracing:

Start Time: 2026-09-14T11:26:22.473349027+00:00[UTC]
End Time: 2026-09-14T11:26:22.473350861+00:00[UTC]
Elapsed Time: 3247 ms
CPU Time: 2831 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,*/*;q=0.8
Accept-Language: en-GB,en-US;q=0.9,en;q=0.8
Accept-Encoding: gzip, deflate, br
Connection: keep-alive
Cookie: _gcl_au=6438517DF0B44DA0A1; Path=/; HttpOnly; _gat=50A.1.97A17AB937; bigip_server_affinity=A71DE337444072CF; path=/; Secure

Response Header Information

Server: Microsoft-IIS/7.0
X-Powered-By: ASP.NET
Date: 2026-09-14T11:26:22.473363884+00:00[UTC]
Content-Type: text/html; charset=utf-8
Cache-Control: max-age=0, 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: