当我尝试从SQL Server Management Studio连接TCP/IP时出现以下错误.我需要一步一步的描述来解决我的问题.这有什么不对？
Cannot connect to
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A network related or instance specific error when a connection to SQL Server...
(provider: Named pipe-provider, error: 40 - SQL Server)
(.Net SqlClient Data Provider)
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For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=53&LinkId=20476
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Error Number: 53
Severity: 20
State: 0
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Program Location:
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject)
at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean …