So, I am a front-end developer trying to go full stack, currently learning the MERN stack.

I’m running into a puzzling problem with MongoDB Atlas on the web app I’m creating and could use some insight. Here’s the deal:

The Issue: I’ve configured my MongoDB Atlas cluster’s network access to allow connections from anywhere by setting the IP whitelist to 0.0.0.0/0. However, when attempting to connect to the cluster from my Node.js application, I’m still encountering errors suggesting that my IP address isn’t whitelisted.

What I’ve Tried: I’ve double-checked the network access settings in MongoDB Atlas to ensure that the IP whitelist is indeed set to 0.0.0.0/0. I’ve also restarted my application and verified that my connection string is correct. Despite these efforts, I’m still unable to establish a connection.

Note: I’m using Node.js with Express and Mongoose for my backend application and React JS for the front-end.