Most of the time, Teams will authenticate without issues. Occasionally, some users may experience the below issue.

When you re-authenticate, you'll likely see this banner at the top of your Teams app.

For some users, clicking this causes:

  • Nothing at all to happen
  • An authentication popup to appear but is blank

If you experience this issue, here's what you can do to fix it.

1. Sign out of Teams by right clicking Teams in the task bar and choosing Sign Out.

2. Exit Teams entirely by clicking the up arrow in the far right toolbar of your screen (the notifications tray), right clicking on the Teams icon then selecting Exit.

3. Click the Start menu and type 'Email'.

4. Select the Email and Accounts option that appears.

Result: The Email and Accounts box opens.

5. In the Email and Accounts window, click Add a work or school account under the heading Accounts used by other apps.

6. Sign into your ACU account again using your USERNAME (not your email) and password.

7. You'll likely be asked to authenticate using MFA.

If you aren't asked to MFA, don't worry, the fix will still work.

Result: You'll see this screen.

8. Reopen Teams as you normally would.

Result: You should be logged into Teams automatically without needing to re-enter your details, or authenticate.

If Teams asks you for your username and password, restart your computer and log into Teams again. If you're still asked for your details, please call Service Central.

Page last updated on 15/05/2024

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