HTTP Error 500.19 - The requested page cannot be accessed because the related configuration data for the page is invalid.

Dan Plantenberg

Modified on: Tue, 14 Mar, 2023 at 4:37 PM

HTTP Error 500.19 - This is just one of many possible solutions to this error, 500.19 errors can have many causes.

https://learn.microsoft.com/en-gb/archive/blogs/webtopics/troubleshooting-http-500-19-errors-in-iis-7

Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid.

Detailed Error Information Module IIS Web CoreNotification BeginRequestHandler Not yet determined

Error Code 0x80070021

Config Error: This configuration section cannot be used at this path. This happens when the section is locked at a parent level. Locking is either by default (overrideModeDefault="Deny"), or set explicitly by a location tag with overrideMode="Deny" or the legacy allowOverride="false".

Config File \\?\C:\inetpub\wwwroot\web.config

Solution:

1) Open this file in Notepad++ : C:\Windows\system32\inetsrv\config\applicationHost.config

2) Find <section name="handlers" overrideModeDefault="Deny" /> and change Deny to Allow.

3) Find <section name="modules" allowDefinition="MachineToApplication" overrideModeDefault="Deny"/> and change Deny to Allow.

4) Save File.

5) Open CMD.Exe as an Administrator.

6) Type in iisreset and close the CMD window when IIS has restarted.

7) Run riteSCAN.