Try this:

Right-click on the speaker icon on the task bar
Select Playback Devices
Left-click on the required(expected) playback device (e.g. Speakers - default device)
Click Configure
Click the Test button.

Do you hear each speaker play a unique sound?

Try other playback devices if available.


BIAB & RB2025 Win.(Audiophile), Sonar Platinum, Cakewalk by Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Kontakt, Focusrite 18i20, KetronSD2, NS40M Monitors, Pioneer Active Monitors, AKG K271 Studio H'phones