[Samba] Samba 4.2.6 PDC+Ldap Upgrade Reject Windows XP Boxes

[Andrew Bartlett]

On Thu, 2018-04-12 at 21:57 -0700, Periko Support via samba wrote:
> Hi guys.
> 
> I finally upgrade my old centos 6 as PDC with samba 3.6.x+LDAP 2.3.X
> to centos 7 with Samba 4.6.2 and ldap 2.4
> 
> All my windows 7,8,10, Winserver 2012 R2 are working no issue, users
> can login and see share folders and share printers.
> 
> But I still have 2 machines running windows xp pro(this month will be
> the end finally) that can login into the domain but they cannot see
> share folders and printers.
> 
> Every time they try to access any machine or share folders on servers,
> the system request to input the username+password.
> 
> I had check my settings but don't detect which parameter affect this OS.

NTLMv2 is the default now.  Set ntlm auth = yes or make the client do
NTLMv2 (better). 

-- 
Andrew Bartlett
https://samba.org/~abartlet/
Authentication Developer, Samba Team         https://samba.org
Samba Development and Support, Catalyst IT   
https://catalyst.net.nz/services/samba