mount_smbfs NTLMv2 support

Does the mount_smbfs application support NTLMv2 authentication?

I have a Samba server with this configuration:

ntlm auth = no
lanman auth = no

FreeBSD can't seem to authenticate (it works with the settings above toggled).
Windows works fine of course.

Using LM or NTLM authentication is not acceptable.
I'm using the latest -RELEASE version, on both server and client, with the latest ports.

Any ideas?
I have just stumbled over the same issue: After upgrading FreeNAS to 9.10.2-U2 I can no longer connect to it with my FreeBSD 11.0-RELEASE clients:
Mar 29 16:21:28 storage1 smbd[12435]:   ntlm_password_check: NTLMv1 passwords NOT PERMITTED for user pvoigt

Does anybody know how to use mount_smbfs with NTLMv2 authentication?