Desktop Application Notification sound not working

Steps done:

  • Killed Mattermost process.
  • Used Mattermost command line tool to create a new test user, verify and activate.

Tests done:
1 Have another user on another PC send test user a direct message.
2 Have another user on the same PC but on the web app send test user a direct message.
3 Have the test user send another user on the same PC but on the web app. (not related just to experiment)

Only case number 3 produces a notification sound from the browser (Chrome). Both case 1 and 2 did produce pop up banner notification but NO sound.

Edit: I tried to explore the sound settings of my PC and in the Volume Mixer, I see that Mattermost didn’t show up. I think in this case it is the OS fault and I will try to Google the fix for this. What I’ve tried:

  • Enabled “Allow applications to take exclusive control of this device”
  • Ran Mattermost as Administrator
    So far still didn’t work but I feel that I am on the right direction.