Windows Server 2003 R2, SQL Server 2005 with SP4. SQL Server Service is running, using TCP/IP only (Surface Area Configuration). Network Configuration - Shared Memory and TCP/IP are enabled. SQL Server Browser is disabled. I could login to SQL Server and connect to databases. Everything was fine. But after restarted a server, I can not login... give me an error. What can I check? Strange things... I can not connect to SQL Server on the server SQL Server 2005 is on the OS. But users *can* use/connec to the database from web applications. Is the server wrong somewhere? Some more info, example, C drive (OS, SQL Server and system databases...), K and L drive (SAN for user databases and log files) Please give me advice.
Cannot connect to [servername]
A network-related or instance specific error occured 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: Name Pipes Provider, error: 40 - Could not open a connection on SQL Server) (Microsoft SQL Server, Error : 53)