Solved! Go to Solution.
For an issue like this it would best to troubleshoot the issue live with one of our Reps.
Thank you, Neil2! My headset has worked seamlessly until last week and your suggestion about going to Plantronics hub and enabling sensing fixed it!
The microphone of headset Plantronics C320-M does not work anymore within GoToMeeting, whereas it used to work fine and still does for all other applications like Zoom and Teams. At first, I still got the microphone to work by plugging the headset in again, then it only worked after first restarting the computer, and now the microphone does not work in GTM whatever I try. Colleagues have the same problem.