当我尝试从sql Server Management Studio连接TCP / IP时,我收到以下错误.我需要一步一步的描述来解决我的问题.这里有什么问题？
Cannot connect to =================================== 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) ------------------------------ For help,click: http://go.microsoft.com/fwlink?ProdName=Microsoft+sql+Server&EvtSrc=MSsqlServer&EvtID=53&LinkId=20476 ------------------------------ Error Number: 53 Severity: 20 State: 0 ------------------------------ 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,sqlConnection owningObject) at System.Data.sqlClient.sqlInternalConnectionTds.LoginNoFailover(String host,Boolean redirectedUserInstance,sqlConnection owningObject,sqlConnectionString connectionOptions,Int64 timerStart) at System.Data.sqlClient.sqlInternalConnectionTds.OpenLoginEnlist(sqlConnection owningObject,Boolean redirectedUserInstance) at System.Data.sqlClient.sqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity,Object providerInfo,Boolean redirectedUserInstance) at System.Data.sqlClient.sqlConnectionFactory.CreateConnection(DbConnectionOptions options,Object poolGroupProviderInfo,DbConnectionPool pool,DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection,DbConnectionPoolGroup poolGroup) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection,DbConnectionFactory connectionFactory) at System.Data.sqlClient.sqlConnection.Open() at Microsoft.sqlServer.Management.UI.VSIntegration.ObjectExplorer.ObjectExplorer.ValidateConnection(UIConnectionInfo ci,IServerType server) at Microsoft.sqlServer.Management.UI.ConnectionDlg.Connector.ConnectionThreadUser()
