When I try to authenticate a proprietary client with Netlogon or respective NTLMv1, I see the following error message in log.samba:
[2019/11/24 19:40:02.252780, 0, pid=3525] ../../source4/rpc_server/netlogon/dcerpc_netlogon.c:284(dcesrv_netr_ServerAuthenticate3_helper) dcesrv_netr_ServerAuthenticate3_helper: schannel required but client failed to offer it. Client was xyz$
I searched Google for the message and you should set
server schannel = auto
in smb.conf, but I can’t find a suitable entry in the UCS registry.