To fix audio signal and playback issues with your M-Track Duo or Solo interface:

1. Check that the correct input is selected in your recording software.

2. Ensure that the correct output is chosen on both your interface and computer's settings.

If these don't work, try:

3. Restarting your DAW (digital audio workstation) and/or computer completely.

4. Reinstalling or updating drivers for your operating system if necessary.

For Windows 7 & up:

5. Download and install the M-Audio driver from their official website before use.

If issues persist despite these steps, check:

6. Cable connections between your interface, monitor speakers, and recording gear (try using different cables).

7. That all devices are properly powered on.

8. Interface settings in both the hardware panel and software preferences.

For further assistance with troubleshooting specific problems or technical support for M-Audio products:

9. Visit the Focusrite website's Support section dedicated to your model for detailed guides, FAQs, and contact information.

If none of these solutions resolve your issue, consider reaching out directly through email using the provided address on their site.

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