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.
Use can use follwing server
Finally, My App Executed 🙂