Duo Service: Fail Open if Unable to Contact Duo

If enabled, permits device access if unable to contact the Duo service, or any communication errors occur. If disabled, users cannot logon to Windows unless they have Internet access at the logon screen and can contact the Duo service.

Default: Enabled.

Supported on: At least Windows Server 2003 operating systems or Windows XP Professional

Registry PathSOFTWARE\Policies\Duo Security\DuoCredProv
Value NameFailOpen
Enabled Value1
Disabled Value0