Ensure the port in your URL (e.g., :8000 ) matches the port the server is listening on.
If you aren't intentionally using a proxy, Windows might have a "ghost" proxy setting active that Python is trying to follow. Press Win + R , type , and hit Enter. Go to the Connections tab and click LAN settings . Uncheck "Use a proxy server for your LAN." Check "Automatically detect settings." Restart your IDE/Terminal and try again. Step 2: Fix via Python Code Ensure the port in your URL (e
: Disable your antivirus for 60 seconds. If the script works, you need to add an exception for your Python environment. Ensure the port in your URL (e