With version 20, web clients need to have notifications enabled on their computers for the web client to work correctly.
NEW interface POST June 2026:
Click the bell icon on the top right of the screen and allow the notification setting.
OLD interface PRIOR to June 2026:
Click the bell icon in the top left corner and allow the notification settings when the web client is first accessed.
Alternate Manual Method:
If this is missed and no longer there, you can do this manually, pasting this URL into the address bar and enter it in Chrome to access the section below:
chrome://settings/content/notifications?search=notification
This will now show the users as registered.