Tv meeting has no audio for presenter - free version

[TdeV]

I've been using Teamview for remote control for a couple of years. I have always used Skype for audio because I've never got Teamviewer audio/visuals to work.

I'm a newbie Teamviewer meeting user.

In my test case, I am the presenter (Host Meeting). I can invite user.
I can hear user, user cannot hear me.
On my side panel, the bar moves under the microphone icon.

I have been through Options a few times and switched a few things but no result.

Ideas? TIA.