Mic auto Mutes

Hi all,

I have a remote user with a new Latitude 7370.  They complain that their microphone auto mutes when on Skype or GoToMeeting calls. It's annoyance since they go to speak and the microphone is muted.  They are using a Logitech USB Mic most of the time but they reported is happens with the built-in Mic as well.  Has anyone ever experienced this?

Thanks  Bob