Whiteboard not working - Microsoft Community
https://answers.microsoft.com/en-us/msteams/forum/all/whiteboard-not-working/e0b39442-3052-43d9-9d51-b965afefa46f
Nov 16, 2020 · You could try this; in order to avoid any other account credentials in cache, in any internet browser in incognito/inPrivate mode (Ctrl+Shift+N), go to: https://teams.microsoft.com/, access with your Office 365 account, then, verify if you can access through Teams "web-client", then in a meeting or a call, try to use the Whiteboard, directly there in the browser, if is work …
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