The-target-principal-name-is-incorrect-cannot-generate-sspi-context [Tested — 2024]

: Try connecting using the server's IP address. If it works, the issue is almost certainly related to SPN or DNS resolution, as IP connections often fall back to NTLM authentication instead of Kerberos. AI responses may include mistakes. Learn more

The error message typically signals a failure in Kerberos authentication between a client and a SQL Server. It usually means the client cannot verify the identity of the server because of a mismatch or issue with the Service Principal Name (SPN) . Common Root Causes : Try connecting using the server's IP address

: This official tool from Microsoft Learn can scan your SQL instance and automatically identify missing or misconfigured SPNs. Learn more The error message typically signals a

: A time difference of more than 5 minutes between the client, server, and Domain Controller can break Kerberos tickets. : A time difference of more than 5