Symptoms

When you scan an Exchange On-Premises organization you see the following error

The Exchange PowerShell connection is configured to use Kerberos authentication; however, this machine is a member of a workgroup. Please provide the custom credentials in the Exchange On-Premises scan task.


Cause

Implicit Kerberos authentication cannot be used when the computer running the XIA Configuration Client machine is on a workgroup, rather than being domain joined. This is common when using the technician license and the computer running the XIA Configuration Client is separate from the environment being scanned. 


Resolution

Manually configure the credentials for the Exchange on-premises scan task.