Cannot get node-apn to connect - node.js

Question

I'm trying to make a connection to APNs. It simply won't connect. I get variations of:
apn Socket error occurred +609ms { [Error: socket hang up] code: 'ECONNRESET' }
and
apn Connection error occurred before TLS Handshake +0ms
This is for a Passbook pass. Not an app. I'm using Passbook certificates.
My code is:
var apns = require('apn');
var root = process.cwd();
var fs = require('fs');
var options = {
cert: root + '/certs/new/cert.pem', /* Certificate file path */
certData: null, /* String or Buffer containing certificate data, if supplied uses this instead of cert file path */
key: root + '/certs/new/key.pem', /* Key file path */
keyData: null, /* String or Buffer containing key data, as certData */
passphrase: 'secret', /* A passphrase for the Key file */
ca: null, /* String or Buffer of CA data to use for the TLS connection */
gateway: 'gateway.sandbox.push.apple.com',/* gateway address */
port: 2195, /* gateway port */
enhanced: true, /* enable enhanced format */
errorCallback: undefined, /* Callback when error occurs function(err,notification) */
cacheLength: 100 /* Number of notifications to cache for error purposes */
};
var apnsConnection = new apns.Connection(options);
var myDevice = new apns.Device('token');
var note = new apns.Notification();
note.payload = {};
note.device = myDevice;
apnsConnection.sendNotification(note);

Answer 1

It appears that I mixed up my certificates. I'm sure I tried swapping them earlier but obviously didn't.
cert: Your app cert.
key: Apple's WWDR

Answer 2

are you behind a proxy? that could be the issue (at least it is often in my case)

Answer 3

Try the following structure : Read the .cert and .key files manually and set them as certData and keyData property, respectivelly. Here is the core :
var key = root + '/certs/new/key.pem'
var cert = root + '/certs/new/cert.pem';
var certData = fs.readFileSync(cert, encoding='ascii');
var keyData = fs.readFileSync(key, encoding='ascii');
var apnsConnection = new apns.Connection({
certData: certData,
keyData: keyData,
gateway: 'gateway.sandbox.push.apple.com',
port: 2195,
... /* other configs of course */
});