The Samba-Bugzilla – Bug 13045
Authentication fails on Windows 10 with "Send LM & NTLM - use NTLMv2 session security if negotiated"
Last modified: 2017-09-20 23:17:58 UTC
Created attachment 13617 [details]
Wireshark capture of login attempt
With the current Samba default "ntlm auth" setting of ntlmv2-only, authentication fails from Windows 10 clients if they have "Network security: LAN Manager authentication level" set to "Send LM & NTLM - use NTLMv2 session security if negotiated.
I am able to authenticate if I change "ntlm auth" to ntlmv1-permitted, or if I change the Windows "Network security: LAN Manager authentication level" policy to "Send NTLMv2 response only".
Created attachment 13618 [details]
Debug level 10 log