In the case of hardware not connecting, you may see a Connection Error pop-up notification, with a Troubleshoot button that leads to our Windows connection - Check the default audio playback device article.In the case of no audio output, it's likely that you will see the software master output light up and virtual decks spin, but no actual audio output can be heard, and this usually happens as soon as the application is launched.We are aware of lack of microphone access, that can result in a no audio output when Serato DJ Pro or Serato DJ Lite are used without hardware connected (offline, Practice, and Play modes), or alternatively may result in a failed connection even when hardware is connected - both on Windows 10 & 11 operating systems