@Peter5 wrote: Mine is a slightly different problem. I'm using Macs at each end, but my view of the remote's audio and video windows is blanked out so I am unable to un-mute the mike or turn on the video. A user on the remote machine can do this, so there is no actual problem with sending A/V. I am experiencing similar problems between Macs using TeamViewer 12. The remote Mac can hear me and if video is on can see me as well. However, I cannot hear any audio from the remote Mac. There are no audio controls displayed on the remote computer and the remote video controls are not active on that computer. I am running macOS Sierra. Previous versions of TeamViewer did not experience these audio problems. It is unacceptable that a key functionality of TeamViewer is inoperable and a solution needs to be provided.
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