Hi TT,
Thanks for your reply. I'm sure about the correction of AD configuration since it can connect to domain.
Just reboot again and see issue still exists, maybe it didn't save last used password (or didn't recognize it, it contains special characters such as @) because I need to type again. I've changed the password to normal text and number and we'll see if it can fix the problem. If not, I'll send device to vendor for checking.
Best Regards.