Customer Authentication requests are successful only with the LDAP password (even without the OTP).
OWA integration was not done correctly. Under VIP Integration Settings Page – Plugin’s URL Configuration – Protected URL for IIS was incorrect.
Requested customer to uncheck all the options under Plugin's URL Configuration. Suggested to click on OWA - Select 2013 - Remove everything from Text Box.
Enter: /owa/auth.owa - Click OK - Restart the IIS.
Authentication with OTP Successful.
Authentication Without OTP Failed.
Authentication with incorrect OTP Failed.