Microsoft SharePoint Server is an efficient tool to create a collaborative and shared environment in the organizations. In the back-end, it uses Microsoft SQL Server database to store your mission-critical data. SQL Server database (MDF or Master Database File) is extremely robust way to store critical data. However, in some situations, SharePoint may not connect to the SQL Server database. This behavior makes your precious data inaccessible and puts you in need of SharePoint database recovery
As a practical instance, where SharePoint Server refuses to establish a connection with the SQL Server 2005 based database, you may run across the below error message:
“A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (Provider: SQL Network Interfaces, error: 26 – Error Locating Server/Instance Specified) ”...