Troubleshooting

Understand and fix SQL Server Error 18456. See what each State means, how to check the error log in SSMS, and step-by-step solutions for common login failures.

Why SQL Server shows “The target principal name is incorrect” during TLS, how to diagnose certificate name mismatches and trust issues, and the safest fixes.

Learn how to resolve SQL Server error 7391 by enabling MSDTC and understanding distributed transactions. This guide explains the two-phase commit process and provides step-by-step fixes.

This guide outlines a practical, step-by-step approach for troubleshooting software issues.The goal is to improve effici...