MSSQL tester
MSSQLTester is a professional Microsoft SQL Server monitoring and diagnostic tool. It analyzes SQL availability, latency, timeouts, DNS, TCP, ICMP, Microsoft.Data.SqlClient and OLE DB connections in real time, helping identify whether an issue is related to SQL Server, the network, the provider, or the client configuration.
Description
MSSQLTester is an advanced diagnostic tool for Microsoft SQL Server environments, designed for IT professionals, system administrators, developers, and businesses that need to investigate disconnects, timeouts, and intermittent connectivity issues. The software monitors both fresh SQL connections and persistent sessions, checks DNS resolution and TCP connectivity, collects network snapshots and events, stores incident history, and supports comparisons across different providers and architectures, including 32-bit and 64-bit OLE DB. The collected data helps determine whether a failure originates from SQL Server, the network path, DNS, the selected provider, or the client workstation. Detailed logs, exportable reports, incident analysis, and troubleshooting features make MSSQLTester suitable for both occasional diagnostics and continuous monitoring. MSSQLTester is available in Free, Diagnostic, and Enterprise editions, with Enterprise supporting simultaneous monitoring of multiple connection profiles.