connect ETIMEDOUT error while doing POST query in Express js

I am writing a simple post call. My code is as follows:

var express    = require('express');        
var app        = express();                
var bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
var port = process.env.PORT || 8080;        
var router = express.Router();             
var mongoose   = require('mongoose');
mongoose.connect('mongodb://node:node@novus.modulusmongo.net:27017/Iganiq8o');
router.use(function(req, res, next) {

    console.log('Something is happening.');
    next(); 
});enter code here

router.get('/', function(req, res) {
    res.json({ message: 'hooray! welcome to our api!' });   
});

var Bear     = require('./app/models/bears');
router.route('/bears')    
.post(function(req, res) {
    var bear = new Bear();     
    bear.name = req.body.name;  
    bear.save(function(err) {
        if (err)
            res.send(err);

        res.json({ message: 'Bear created!' });
    });

});

app.use('/api', router);
app.listen(port);
console.log('Magic happens on port ' + port);

I was previously getting the following error

failed to connect to [novus.modulusmongo.net:27017]

which I rectified by updating mongoose but now still i am getting another error as:

/node_modules/mongoose/node_modules/mongodb/lib/server.js:242
    process.nextTick(function() { throw err; })
                                  ^

Error: connect ETIMEDOUT 54.209.84.209:27017

via Nitika Jain