I am facing some problems concerning authentication:

• Trying to connect to Oracle DB and I am receiving the message:

       Oracle Authentication failed ... ORA-01017: invalid username/password; logon denied

• Trying to connect to Windows machine with local and domain user and I am receiving the same message(please keep in mind that these are two different Windows machines):

          Unable to complete Windows login ... ntstatus=c000006d

Have you received these messages before? Is there anything I can do? I have followed the instructions provided by Qualys concerning the confiruation in order to authenticate to these technologies.