SharePoint Search – AuthzInitializeContextFromSid failed

I’d a really, really weird problem with a customer yesterday. We’d set up their SharePoint search. Indexing seemed to be working correctly, and when I logged in as an administrator, I was getting search results correctly. However, logged in as a normal – though very highly privileged – user my search results were missing! This was some thing of a surprise. It felt like security trimming, but the user was a Site Collection admin, and had Full Control throughout the entire main content web application. Also, we were indexing content off the network file share, and we knew he could access both the SharePoint Content.

However, when he ran a search, he didn’t get any search results. That sucked. I tried another user account – and had the same problem.

Eventually, I looked in the logs and found the following message:

AuthzInitializeContextFromSid failed with ERROR_ACCESS_DENIED. This error indicates that the account under which this process is executing may not have read access to the tokenGroupsGlobalAndUniversal attribute on the querying user’s Active Directory object. Query results which require non-Claims Windows authorization will not be returned to this querying user.

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SharePoint Search – AuthzInitializeContextFromSid failed