I first noticed this error with the Search Service Application when I was no longer able to use the search portal, but have since noticed the issue with the PowerPoint Service Application.
When I navigate in Central Administration to either the "Farm Search Administration" or the "Manage
service applications" pages and attempt to manage the "Search Service Application", I get this error:
Error: Access Denied
You are currently signed in as: WHEELERS\MyUserName
Sign in as a different user
I have tried removing the service application and re-adding it, changing the application pool to running under an existing application pool as the farm administrator, as another application pool with the same identity as the primary web application, and
as another application pool running under the SP-SearchService identity.
The big recent change with SharePoint, aside from fixing the previous issue where I was incorrectly using CNAMEs with Kerberos, was to switch the main web application to claims authentication. That site correctly works with claims based authentication and
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