Connection to MongoDB Atlas Cluster error

Question

I am facing an issue connecting to my MongoDB Atlas cluster via Node.js, express and mongoose:

{ MongoNetworkError: connection 4 to mongodb-passport-auth-shard-00-00-vp7yg.mongodb.net:27017 closed
    at TLSSocket.<anonymous> (C:\Users\Vishesh\Documents\Projects\nodejs-passport-auth\node_modules\mongodb-core\lib\connection\connection.js:276:9)
    at Object.onceWrapper (events.js:273:13)
    at TLSSocket.emit (events.js:187:15)
    at _handle.close (net.js:606:12)
    at TCP.done (_tls_wrap.js:386:7)
  name: 'MongoNetworkError',
  errorLabels: [ 'TransientTransactionError' ],
  [Symbol(mongoErrorContextSymbol)]: {} }

Here is the code I used for connecting to my cluster via a Short SRV connection string:

mongoose
  .connect(
    'mongodb+srv://myname:[email protected]/test?retryWrites=true',
    { useNewUrlParser: true }
  )
  .then(() => console.log("Connected to mongodb..."))
  .catch(err => console.log(err));

Answer 1

I think you must add your IP address to the IP Whitelist in mongoDB.atlas console.

Answer 2

I was getting error

MongoNetworkError: connection 1 to ......-shard-00-00.b2zap.mongodb.net:27017 closed

even if I added allow access from anywhere in IP whitelist.

After adding my IP address along with allow access from anywhere, it worked for me.