What debugging steps should a developer take when encountering a persistent 'Network Error' from Axios in a React application?

When facing a persistent 'Network Error', follow these debugging steps: 1. **Check Browser Developer Tools:** Open the 'Network' tab in your browser's dev tools. Look for failed requests (often red). The 'Console' tab might also show specific CORS errors or other related messages. 2. **Verify API Endpoint:** Double-check the URL of your API endpoint for typos or incorrect domain/port. 3. **Server Status:** Ensure your backend server is running and accessible. Try accessing the API directly from your browser or via a tool like Postman/Insomnia. 4. **Internet Connection:** Confirm your device has an active internet connection. 5. **Firewall/Proxy/VPN:** Check if any local firewall, VPN, or corporate proxy is blocking the request. 6. **Server Logs:** Examine your backend server logs for any incoming requests or errors that might explain why no response is being sent.