Hi, we have the same errors. We can connect with smbclient to several servers, but when we want to connect to a netapp, we get the error message:
Got challenge flags:
Got NTLMSSP neg_flags=0x60898205
NTLMSSP_NEGOTIATE_UNICODE
NTLMSSP_REQUEST_TARGET
NTLMSSP_NEGOTIATE_NTLM
NTLMSSP_NEGOTIATE_ALWAYS_SIGN
NTLMSSP_TARGET_TYPE_DOMAIN
NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY
NTLMSSP_NEGOTIATE_TARGET_INFO
NTLMSSP_NEGOTIATE_128
NTLMSSP_NEGOTIATE_KEY_EXCH
ntlmssp_handle_neg_flags: Got challenge flags[0x60898205] - possible downgrade detected! missing_flags[0x00000010] - NT code 0x80090302
NTLMSSP_NEGOTIATE_SIGN
neg_flags[0x62088205]
NTLMSSP_NEGOTIATE_UNICODE
NTLMSSP_REQUEST_TARGET
NTLMSSP_NEGOTIATE_NTLM
NTLMSSP_NEGOTIATE_ALWAYS_SIGN
NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY
NTLMSSP_NEGOTIATE_VERSION
NTLMSSP_NEGOTIATE_128
NTLMSSP_NEGOTIATE_KEY_EXCH
SPNEGO(ntlmssp) login failed: NT code 0x80090302
SPNEGO login failed: NT code 0x80090302
session setup failed: NT code 0x80090302
I also compiled Samba 4.4.2 by myself, but no luck ...