Backup works on Windows 2016 but fails on Windows 2019

[Magion]

Ok, I'm probably missing something very simple but can't seem to figure it out.

I have a backup job with a bunch of Windows 2016 servers working fine. But when I add a Windows 2019 server, the backup job is unable to backup the new Windows 2019 server.

Cannot connect to the host's administrative share. Host: [x.x.x.x]. Account: [domain\administrator]. Win32 error:The network path was not found. Code: 53

When I enable file sharing on the Windows 2019 server, the backup works. However a number of Windows 2016 servers don't have file sharing enabled, but are succesfully backup'ed. I compared the firewall settings but see no differences.

Both 2016 and 2019 templates are built in the same way. UAC on, backup using domain administrator.

What could be the reason the backup does work on 2016 but not 2019?

[Magion]

Using VBR 9.5.4.2866 on Windows 2016. ESXi 6.5 u2

[DGrinev]

Hi Magion,

Can you try to connect to the \\server\admin$ share with Windows Explorer from the backup server machine specifying the credentials?

Thanks!

[Magion]

I tried accessing the admin share of the Windows 2016 and 2019 servers, and both fail.

Michel

[DGrinev]

Please review this knowledge base article KB1230 for additional information.
If it doesn't help, I'd recommend to contact the support team and let them take a closer look. Thanks!