We're in the process of deploying SCCM 2012 R2, and have been getting this error every time a user tries to log into the application catalog website. The site was working Tuesday morning, and although I don't believe we made any changes to the server, it stopped working that afternoon.
I've tried several common solutions suggested in various threads about this issue, including giving the Local Service account full permissions to C:\Windows\Temp. Today I tried removing the Application Catalog and Application Catalog Service components from SCCM, removing IIS and .NET from the server, re-installing IIS and .NET, and reinstalling the components, and nothing has worked.
The ServicePortalWebSite.log file in the CMApplicationCatalog directory shows the following error every time the service starts or a user tries to log in:
[62, PID:11176][03/12/2015 12:09:42] :System.ServiceModel.Security.SecurityNegotiationException: The caller was not authenticated by the service.
And below that, in one of the exceptions, this line:
System.ServiceModel.FaultException: The request for security token could not be satisfied because authentication failed.
We installed the component to the default web site in IIS, using the default name and options, without HTTPS, so this should be as simple deployment. I've only found two discussions about the specific errors. Per this one (http://www.itninja.com/question/sccm-2012-unable-to-connect-to-application-catalog), I've confirmed that both sites are using the correct application pool and reinstalled .NET. Per this one (https://social.technet.microsoft.com/Forums/en-US/65f647f3-ae38-427e-94ae-65ec470e308a/application-catalog-cannot-connect-to-the-application-server?forum=configmanagerdeployment) I've confirmed that the FQDN for the server is consistent throughout SCCM and the web.config files for both sites, and that there are no other site bindings to port 80.
I'm out of ideas, especially since this is such a simple environment. Any ideas what might be causing this error or how else to troubleshoot it?
