Here is one of our docs pages that covers many connection scenarios: https://docs.atlas.mongodb.com/connect-to-cluster/ Here is another reference that describes the various components of a connection string URI: https://docs.mongodb.com/manual/reference/connection-string/ The connection string URI that you get in the Atlas UI is a SRV record that resolves to the nodes in your MongoDB replica set. It should be sufficient to pick the tool you prefer (eg shell, Compass, or MongoDB driver) and use the SRV connection string from the UI to connect to your cluster. If you're still encountering problems, our support team (accessible via the icon in the bottom right of the UI) or our community form (https://community.mongodb.com/) are good avenues to seek help!

Could you please cover the use of a URI

Hey Ayachitula, Thanks for the feedback! We're increasingly looking to improve how we interact with Atlas users. Here's a blog post + video detailing how to deploy and connect to a free tier cluster: https://www.mongodb.com/blog/post/quick-start-getting-your-free-mongodb-atlas-cluster Are there other topics you would like us to cover? Is video/YouTube always your preferred medium?