My microphone isn’t working

When an application in your Cloud PC needs the microphone, your browser asks for permission once and remembers your answer. After that you can mute and unmute from A-Menu.

If it isn’t working, go through these in order — the first two cover most cases.

Browser permission. If the prompt was dismissed or blocked, the browser won’t ask again. Click the padlock in the address bar, set the microphone permission for Aristeem to Allow, and reload the page.
A-Menu. Check the microphone isn’t muted there.
Local default device. Your browser uses whichever microphone is the default input on your own computer. A newly connected headset may not have become the default automatically.
OS privacy settings. On Windows and macOS, microphone access can be blocked for the browser itself at system level.
Other applications. Video-call software can hold exclusive access to the device — close it.