: 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 SPN might be missing, duplicated, or registered to the wrong service account (e.g., registered to a domain user when the service is running as LocalSystem ).
: Check which account is running the SQL Server service. If it's a domain account, ensure the SPN is registered specifically to that account using the command setspn -L .
The-target-principal-name-is-incorrect-cannot-generate-sspi-context [TESTED »]
: 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 SPN might be missing, duplicated, or registered to the wrong service account (e.g., registered to a domain user when the service is running as LocalSystem ). : Try connecting using the server's IP address
: Check which account is running the SQL Server service. If it's a domain account, ensure the SPN is registered specifically to that account using the command setspn -L . : Try connecting using the server's IP address