ISSUE
After confirming that the device is appropriately selected in the meeting Computer Audio Settings and all basic troubleshooting is performed, if you still do not have sounds in Webex Audio after clicking Connect to Audio or Connect Audio and Video, then it could be the 'Windows Audio' service not functioning correctly.

RESOLUTION

To restart the Windows Audio service:

1. In the Type here to search field on the taskbar, type services.msc.
2. Hit Enter.
3. In the listed Services, scroll down to Windows Audio.
4. Right-click on the service, and select Restart.
5. Once the restart is complete, test the audio during your meeting again.

Notes:

• This may also be related to the sound card or audio drivers. Restarting the Windows Audio service clears any audio-related halts and restores sound in Windows.
• The audio device must be detected to appear in the audio test. If it does not appear, this could indicate that it is still in use or is being used by a different program running on the user's computer.
• Check whether the microphone bar is green and moving in the Presenter's microphone in the Participant's panel: