I've recently ran into a problem with authentication where it fails on a solid 90% of the devices within a network, but works fine a small amount of machines.
The information gathered section(s) say the credentials within the authentication record are incorrect. However, I've confirmed numerous times that the domain admin login credentials are correct. I've been able to successfully RDP to an endpoint and scan with Nexpose using the same creds, but once the Qualys virtual scanner uses them, authentication fails.
I'm just looking for some ideas on where/what to troubleshoot next, as I am running out of ideas.