MongoDB: Can't connect to new replica set master

Question

Trying to set up MongoDB for my Node.JS application. I running this command:

mongo "mongodb+srv://cluster0-gjc2u.mongodb.net/test"  --username <myusername>

And getting this response every single time.

MongoDB shell version v4.2.1
Enter password:
connecting to: mongodb://cluster0-shard-00-00-gjc2u.mongodb.net:27017,cluster0-shard-00-01-gjc2u.mongodb.net:27017,cluster0-shard-00-02-gjc2u.mongodb.net:27017/test?authSource=admin&compressors=disabled&gssapiServiceName=mongodb&replicaSet=Cluster0-shard-0&ssl=true
2019-12-07T12:14:39.630-0600 I  NETWORK  [js] Starting new replica set monitor for Cluster0-shard-0/cluster0-shard-00-00-gjc2u.mongodb.net:27017,cluster0-shard-00-01-gjc2u.mongodb.net:27017,cluster0-shard-00-02-gjc2u.mongodb.net:27017
2019-12-07T12:14:39.630-0600 I  CONNPOOL [ReplicaSetMonitor-TaskExecutor] Connecting to cluster0-shard-00-00-gjc2u.mongodb.net:27017
2019-12-07T12:14:39.631-0600 I  CONNPOOL [ReplicaSetMonitor-TaskExecutor] Connecting to cluster0-shard-00-01-gjc2u.mongodb.net:27017
2019-12-07T12:14:39.631-0600 I  CONNPOOL [ReplicaSetMonitor-TaskExecutor] Connecting to cluster0-shard-00-02-gjc2u.mongodb.net:27017
2019-12-07T12:14:40.259-0600 I  NETWORK  [ReplicaSetMonitor-TaskExecutor] Confirmed replica set for Cluster0-shard-0 is Cluster0-shard-0/cluster0-shard-00-00-gjc2u.mongodb.net:27017,cluster0-shard-00-01-gjc2u.mongodb.net:27017,cluster0-shard-00-02-gjc2u.mongodb.net:27017
2019-12-07T12:14:40.799-0600 I  NETWORK  [js] Marking host cluster0-shard-00-00-gjc2u.mongodb.net:27017 as failed :: caused by :: Location40659: can't connect to new replica set master [cluster0-shard-00-00-gjc2u.mongodb.net:27017], err: AuthenticationFailed: bad auth Authentication failed.


*** It looks like this is a MongoDB Atlas cluster. Please ensure that your IP whitelist allows connections from your network.


2019-12-07T12:14:40.800-0600 E  QUERY    [js] Error: can't connect to new replica set master [cluster0-shard-00-00-gjc2u.mongodb.net:27017], err: AuthenticationFailed: bad auth Authentication failed. :
connect@src/mongo/shell/mongo.js:341:17
@(connect):2:6
2019-12-07T12:14:40.803-0600 F  -        [main] exception: connect failed
2019-12-07T12:14:40.804-0600 E  -        [main] exiting with code 1

I have whitelisted my IP address and made sure everything is in order. What could be causing this problem and how could I fix it? Why would this problem be occurring?

Answer 1

What I tried was:

1. Create new user
2. Made sure the username and password for my mongoURI when connecting my application is the same as the username and password for when I connect with the mongo shell.
3. Run your connection string in your command line in your application.

Answer 2

I realise that "just wait a bit" isn't a terribly constructive answer, but I had the same issue and no luck in finding a solution, so left it for a couple hours and came back to find it working perfectly.

The text that says your change has been deployed is misleading. Not sure why it takes several hours to kick in, but for reference I found this when using the M0 Sandbox cluster tier.