Unable to hear anyone on meeting

I am unable to attend any meeting because speaker of my laptop is not working. I am unable to hear others in meeting. It is working for all other apps. I have tried to follow every trouble shoot step in article from chatbot. I have changed the speaker, looked in control panel>sound>level> enabled, I have checked for all available updated, I have updated the zoom but still it is not working. Kindly help on priority.