Microphone not available for Webex and Zoom sessions in AVD

New Contributor

We've just deployed a trial AVD environment for a client.


They're unable to use the browser or desktop based version of Webex as the Microphone is not detected.


They are however, able to use their locally redirected microphone in MS Teams.


Windows shows that no Mic is detected on the AVD machine under Settings -> Home -> System -> Sound -> Input


I used the Windows 10 image that includes the AVD Optimised Teams version


Does anyone know why only Teams can use the microphone?

3 Replies



I had to re-size the VM. After doing this the microphone worked fine so never found out what caused this.

Did you find a solution to this problem? We are struggling with the same issue.

@Jeff Lamb 


Hi Jeff, 


Have you tried re-sizing the VM?


Kind Regards,