Try the following suggestions to diagnose the Connection Refused error message when trying to connect to your computer:
2. If the above steps don't apply to you, i.e. you're using manual setup, please double check your IP address and make sure it's correct. Also, a common problem when using local IP addresses is that your device might have switched WiFi networks and may not longer be on the same network as your PC. Double check your WiFi settings by opening up the Settings app on your device.