Configure Microsoft Defender Vulnerability Management - Failure on Authenticated Scans

Question

Greetings everyone ***Moved from Microsoft 365 and Office / Defender / Unknown / Windows I am busy setting up the Microsoft Defender Vulnerability Management Authenticated scan for Windows scanner. I successfully: Installed the scanner on a dedicated Windows Server Registered the scanner as per Authenticated scan for Windows in Defender Vulnerability Management | Microsoft Learn

The challenge begins when I start to create authenticated scan definition: I select Windows Authenticated Scan on Choose Authenticated Scan Type Enter a scan name Select the scanning device Enter hostnames of the target computers Select Kerberos as authentication method Complete domain information and supply the gMSA account

On the next page (scan and add devices), I select run test scan, and unfortunately receive a message stating that it has failed to connect to the remote computer(s) - error: failed to create a connection to <computer names> (2147749988). Has anyone seen this? Please share some tips on how I can go about resolving the issue. I've also tested in my lab environment with full access to all endpoints (firewalls have also been disable just to test).