Are you trying to set up your Lighting Web Component (LWC) App?

Maybe someone will have the following issue?

This site can’t be reached

The webpage at http://0.0.0.0:3001/ might be temporarily down or it may have moved permanently to a new web address.

I’m sharing my experience during my Initial setup process. When was started learning LWC, I got the same issue. Actually I’m working in Salesforce based organization so I just kick-started LWC.

How to solve this issue?

Actually it’s not a big deal in my issue 🙂

We can check our IP using CMD, I just copied my IP address with the HELP of CMD

Then I just used that IP with my LWC App.

OR

Use can use follwing server

http://127.0.0.1:3001/ or http://localhost:3001/

Finally, My App Executed 🙂