Lightswitch: Load operation failed for query 'GetAuthenticationInfo'. The remote server returned an error: NotFound

silverlight iis service web visual-studio-lightswitch
J4N picture J4N · Nov 10, 2011 · Viewed 8.9k times · Source

I'm currently creating a small silverlight application for testing, to see if it can works with other projects.

In debug, everything is working, but once I deploy it to my local IIS Server, I got this error:

Load operation failed for query 'GetAuthenticationInfo'. The remote server returned an error: NotFound.

I've done a lot of research on the net, but nothing seems to resolve my problem.

  • I've the anonymous mode correctly enabled(and all other not) I've
  • done a clean publish on my IIS(7.5) from visual studio
  • My IIS has the two IIS lightswitch extensions, installed through the WPI
  • I'm not using the beta version

The application is just displaying some list, I've the windows auth set.

I've tried to publish as a Desktop application, as a Web application for the Client configuration, and Application serverconfiguration set to local or IIS Server, it's always the same problem(the goal is to have a two tier application(database - application), but hosted in an htm file).

I can't find what is going wrong, My IIS is just fresh installed with all components

Answer

Chielus picture Chielus · Nov 16, 2011

Try restoring .NET Framework 4 at first, before diving into the problem deeper.

This solved the problem in my case

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