[Samba] smbclient fails NT_STATUS_INVALID_HANDLE with Windows 7 KB4480970

[Giulio]

On Sun, Jan 13, 2019 at 2:01 AM Jake Thompson via samba
<samba at lists.samba.org> wrote:
>
> smbclient/mount.cifs stopped working when connecting to a Windows 7
> server. The Windows machine is not part of a domain and smbclient is
> authenticating with one of its local accounts. Upon uninstalling the
> January Windows security patch (KB4480970) from the server, everything
>

> session setup failed: NT_STATUS_INVALID_HANDLE

It's a Windows problem, see:
https://serverfault.com/questions/948263/kb-4480970-and-or-kb-4480960-breaks-smb2-connections-to-windows-7-shares

My Win10 PC had the same issue connecting to Win7 as samba did.
I applied registry fix succesfully.
Apparenlly MS released a patch (see last post in link above), not tried yet.