HTTP Error 500.19 - Internal Server Error

When trying to load the Devolutions Server web page, the following HTTP 500.19 - Internal Server Error is displayed in the browser.

http 500.19 - Internal Server Error.png
http 500.19 - Internal Server Error.png

The cause of this error is because the IIS Rewrite Module and/or the IIS ASP.NET Core Module (ANCM) are missing.

ISS Features Diagnostic.png
ISS Features Diagnostic.png

Solution

  1. From the Devolutions Server Console , edit the instance.
  2. Select the IIS tab.
  3. Click on the IIS Diagnostic button.
  4. Click on the Install Prerequisites button.
    ISSS Features Diagnostic.png
    ISSS Features Diagnostic.png
  5. If running the PowerShell script from the Devolutions Server Console is blocked due to restriction on the system, the script is located in the Scripts folder of the Devolutions Server Console installation folder.