Troubleshooting SharePoint Server

APPLIES TO: yes2013 yes2016 yes2019 noSharePoint Online

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**Building blocks ** Content Description
Claims authentication does not validate user in SharePoint Server
This article describes the tools and techniques that you can use to troubleshoot failed claims-based user authentication attempts.
Troubleshoot common fine-grained permissions issues for SharePoint Server
Learn about how to troubleshoot issues that include fine-grained permission in SharePoint Server.
SharePoint site inaccessible in SharePoint Server
Use a workflow to help identify and fix some of the common causes of the site inaccessible error in SharePoint Server.
Upgrade SharePoint 2013 to SharePoint 2016 through Worflow Manager)
Learn how to upgrade SharePoint 2013 to SharePoint Server 2016 using Workflow Manager.
After installing .NET security patches to address CVE-2018-8421, SharePoint crawler may fail
Learn how to fix SharePoint Search after applying the September 2018 .NET 4.6 or later updates and the crawl fails.

See also