SQL Server Networking troubleshooting documentation expanded

The SQL Server CSS (technical support) and Content teams have been publishing documentation on troubleshooting SQL Server networking issues.

Here is a list of articles that have been produced over the past few months.

Much of the content for these articles was the work of Malcolm Stewart - a tenured SQL Networking Escalation Engineer who has left a large legacy of documentation and troubleshooting tools in the SQL networking domain.  Also, the following individuals contributed many hours of reviews, ideas, improvements, and content creation and organization: Pradeep Madheshiya, Padma Jayaraman, Seven Dong, Haiying Yu, and Joseph Pilov.

Hope you find these useful. Please share with others and don’t hesitate to provide feedback at the bottom of each article page by clicking on “Was this page helpful?”. Also be on the look-out for more as we are not finished yet. 

• You can't use Kerberos unconstrained delegation in certain versions of Windows - SQL Server | Microsoft Learn 
• Certificate validation failure - SQL Server | Microsoft Learn 
• Determine the authentication type - SQL Server | Microsoft Learn 
• Troubleshooting Windows user profile issue in SQL Server - SQL Server | Microsoft Learn 
• Troubleshooting the explicit misplaced SPN issue in SQL Server - SQL Server | Microsoft Learn 
• Troubleshooting the Kerberos tickets issue in SQL Server - SQL Server | Microsoft Learn 
• Troubleshoot LSASS errors with SQL Server authentication - SQL Server | Microsoft Learn 
• Troubleshooting linked server connectivity errors in SQL Server - SQL Server | Microsoft Learn 
• Troubleshooting Named Pipes connection error in SQL Server - SQL Server | Microsoft Learn 
• TLS 1.2 upgrade workflow - SQL Server | Microsoft Learn 
• Consistent SQL Server network connectivity issues - SQL Server | Microsoft Learn 
• Intermittent or periodic authentication issues - SQL Server | Microsoft Learn 
• MSSQLSERVER_18456 - SQL Server | Microsoft Learn (updated)
• Windows user profile can't be loaded in SQL Server - SQL Server | Microsoft Learn
• Local SQL Server can't connect to a linked server when RSA encryption is used - SQL Server | Microsoft Learn
• Connection to the linked server fails - SQL Server | Microsoft Learn
• Connectivity issues occur when SQL Server Integration Services packages fail to run - SQL Server | Microsoft Learn
• SQL Server Agent fails to start while connecting to SQL Server due to misconfigured TLS protocol - SQL Server | Microsoft Learn
• Intermittent connection errors occur in SQL Server - SQL Server | Microsoft Learn
• Linked server couldn't be created after moving on-premises SQL Server to Azure - SQL Server | Microsoft Learn
• Client is unable to connect after implementing cipher suite policies on a SQL Server - SQL Server | Microsoft Learn
• Troubleshooting the SSL_PE_NO_CIPHER error - SQL Server | Microsoft Learn
• Troubleshooting intermittent connection errors using SQLCMD - SQL Server | Microsoft Learn
• Explicit misplaced SPN error in SQL Server - SQL Server | Microsoft Learn
• Kerberos tickets - KRB_AP_ERR_TKT_EXPIRED error in SQL Server - SQL Server | Microsoft Learn
• Intermittent or periodic issues with connecting to SQL Server - SQL Server | Microsoft Learn
• JDBC configuration and troubleshooting - SQL Server | Microsoft Learn
• Troubleshooting network login issues in SQL Server - SQL Server | Microsoft Learn
• Errors in the local security subsystem in SQL Server - SQL Server | Microsoft Learn
• Linked server connectivity errors in SQL Server - SQL Server | Microsoft Learn
• Named Pipes connection failure to SQL Server - SQL Server | Microsoft Learn
• The certificate chain was issued by an authority that isn't trusted - SQL Server | Microsoft Learn
• Timeout expired messages when connecting to SQL Server - SQL Server | Microsoft Learn

Thank you!