STATUS:
Waiting for a fix in a future release of Defender.
WORKAROUND:
Note that this workaround applies when the Defender Desktop login client is unable to reach a Domain controller in the domain.
On a computer where Defender Desktop Login is installed, use Registry Editor to create the following value in the HKEY_LOCAL_MACHINE\SOFTWARE\Policies\PassGo Technologies\Defender\Defender GINA registry key:
Value type: REG_DWORD(32-bit)
Value name: DC Not Reachable
Value data: 1
After creating the registry key, restart the Defender Desktop Login computer.