I can't connect to the shell

This is the error I am getting.

MongoDB shell version v4.0.3
connecting to: mongodb+srv://sandbox-aljb5.mongodb.net/test
Implicit session: session { “id” : UUID(“dde9765a-717a-4931-972e-ecd793bbd717”) }
MongoDB server version: 3.6.8
WARNING: shell and server versions do not match
2018-10-23T11:19:19.779+0200 E QUERY [js] Error: Authentication failed. :
DB.prototype._authOrThrow@src/mongo/shell/db.js:1685:20
@(auth):6:1
@(auth):1:2
exception: login failed

Hi Oliver_28209,

Please re-check the username and password for your cluster. If you have not created a user, then create one. If it doesn’t solve the problem, re-create user maybe with simple password this time. :slight_smile:
Kanika