Internet Information Services

HTTP Error 504 - Gateway Timeout

The server did not respond in a timely fashion.

Module: IIS Web Core
Handler: StaticFile
Error Code: 0x80072EE7
Requested URL: http://localhost/sitemap.xml
Physical Path: L:\Data\WebSites\PreProd\7FF426D5\htdocs\sitemap.xml
Logon Method: SSO
Logon User: Unknown

Detailed Error Information

Server:

Internet Information Services 10.0

Module:

Requested Module: ApplicationInitializationModule
Notification: SEND_RESPONSE
Handler: HandlerFactory
Error Code: 0x80072EE7
Requested URL: http://localhost/sitemap.xml
Physical Path: L:\Data\WebSites\PreProd\7FF426D5\htdocs\sitemap.xml
Logon Method: Anonymous
Logon User: Anonymous

Error Details:

Module Name: CustomErrorModule
Handler Error: The specified application pool is not configured to run classic .NET pipeline mode.
Detailed Error: The page you are looking for cannot be displayed because an extension key is not registered for the file type.
Config Error: Invalid configuration key value.
Config File: E:\inetpub\wwwroot\webapp\administration.config
Requested Tracing ID: 0x4FD74C4E.B7A8A49E.F43B77D4

Most Likely Causes:

  • The requested resource is restricted by access rules.
  • The server is unable to process the request due to a misconfiguration.
  • The handler mapping for the requested file type is not configured.
  • The requested page requires a valid authentication token.

Steps to Troubleshoot:

  • Create a tracing rule to track failed requests for this HTTP status code.
  • Check the application pool configuration and identity.
  • Create a tracing rule to track failed requests for this HTTP status code.
  • Check the application pool configuration and identity.

Connection Settings:

Connection Type: HTTP/1.0
Authentication: Unknown
Protocol: http
Port: 8080

Application Pool:

Pool Name: ProductionPool
Identity: IIS APPPOOL\DevPool
Runtime: v2.0
Queue Length: 380

Request Tracing:

Start Time: 2026-09-15T03:41:20.865081868+00:00[UTC]
End Time: 2026-09-15T03:41:20.865083592+00:00[UTC]
Elapsed Time: 5072 ms
CPU Time: 1506 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-US,en;q=0.9,de;q=0.8
Accept-Encoding: gzip, deflate, br
Connection: keep-alive
Cookie: analytics=7A092CC718.EAB249980D117F14CA38; path=/; Max-Age=31536000; JSESSIONID=90A823BD0C39B09E; path=/; HttpOnly; SameSite=Strict

Response Header Information

Server: Microsoft-IIS/10.0
X-Powered-By: ASP.NET Core
Date: 2026-09-15T03:41:20.865093822+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: