Error: "The request failed with HTTP status 404: not found" when running any scans on the Core Server

Version 9

    Verified Product Versions

    Endpoint Manager 9.6Endpoint Manager 2016.xEndpoint Manager 2017.xEndpoint Manager 2018.x

    Issue

     

    Running any scans from the console result in The request failed with HTTP status 404: Not Found.

     

    IIS logs shows a response of 404 2

     

    Cause

    ISAPI and CGI Restrictions are improperly configured.

     

    Resolution

     

    1. Open IIS Manager
    2. Click on the server level
    3. Double-click on ISAP and CGI Restrictions
    4. Make sure all restrictions are set to allowed.
    5. From an administrator command prompt, run IISreset
    6. Try again

     

    More Info:

    You can view HTTP status codes at https://support.microsoft.com/en-gb/help/943891/the-http-status-code-in-iis-7.0,-iis-7.5,-and-iis-8.0