Trouble connecting to SQL server (SQL instance name missing)

Hi I am having troubles connecting to SQL server

My MSSQL version is 12.0.2000.8 (SQL Server 2014, local instance not azure)

My code is mostly just from examples

var sql = require('mssql');

var config = {
    user: 'devuser',
    password: 'devuser',
    server: 'GRIFF\\SQLEXPRESS',
    database: 'devdb',
    port: 1433,
    debug: true,
    options: {
        encrypt: false // Use this if you're on Windows Azure
    }
}

var connection = sql.connect(config, function(err) {

    console.log(err);

    var tpl = 'insert into Users (DisplayName, Email) values ("@displayName", "@email")';
    var ps = new sql.PreparedStatement(connection);
    ps.input('displayName', sql.NVarChar(255));
    ps.input('email', sql.NVarChar(255));
    ps.prepare(tpl, function(err) {

        console.log(err);

        var user = {
            displayName: 'Jim',
            email: '[e-mail]'
        };

        ps.execute(user, function(err, recordset) {

            console.log(err);
            console.log(recordset);

            ps.unprepare(function(err) {

                console.log(err);
            });
        });
    });
});

I get following response

{ [ConnectionError: Failed to connect to GRIFF:undefined in 15000ms]
  name: 'ConnectionError',
  message: 'Failed to connect to GRIFF:undefined in 15000ms',
  code: 'ETIMEOUT' }

C:\Temp\mssqlfoo\node_modules\mssql\lib\main.js:583
        this.connection.pool.acquire(done);
                             ^
TypeError: Cannot call method 'acquire' of null
    at PreparedStatement._prepare (C:\Temp\mssqlfoo\node_modules\mssql\lib\main.js:583:30)
    at PreparedStatement.prepare (C:\Temp\mssqlfoo\node_modules\mssql\lib\main.js:513:21)
    at C:\Temp\mssqlfoo\sql.js:22:5
    at C:\Temp\mssqlfoo\node_modules\mssql\lib\main.js:268:20
    at C:\Temp\mssqlfoo\node_modules\mssql\lib\tedious.js:394:20
    at C:\Temp\mssqlfoo\node_modules\mssql\node_modules\generic-pool\lib\generic-pool.js:274:11
    at Connection.<anonymous> (C:\Temp\mssqlfoo\node_modules\mssql\lib\tedious.js:347:26)
    at Connection.g (events.js:180:16)
    at Connection.emit (events.js:95:17)
    at Connection.connectTimeout (C:\Temp\mssqlfoo\node_modules\mssql\node_modules\tedious\lib\connection.js:709:10)

Content of mssql_debug_1429881975435.log

Failed to connect to GRIFF:undefined in 15000ms

That GRIFF:undefined thing looks pretty wrong, the SQL instance name is missing. Do I do something wrong here?

[tracker1]

@aruss according to tedious docs on the connection api…

var config = {
    user: 'devuser',
    password: 'devuser',
    server: 'GRIFF',
    database: 'devdb',
    port: 1433,
    debug: true,
    options: {
        encrypt: false // Use this if you're on Windows Azure
        ,instanceName: 'SQLEXPRESS'
    }
}

[malcolmswaine]

Make sure that the SQL Server Browser Service is running. Turning it off will cause this error to be raised.