Outlook trying to connect

Found this error again on one of our staff Outlook application.

Quick solution :

Disable Modern Authentication by regedit to HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\Identity, create a DWORD item named EnableADAL and set it to zero.

Under the same registry key, create a DWORD item named DisableADALatopWAMOverride and set it to 1.

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