Samba BUG: Did not manage to negotiate mandetory feature SIGN for dcerpc auth_level 6

[Martinx - ジェームズ]

Guys,

Almost everyday, Samba4 AD DC becomes a mess...

log.samba shows:

"Did not manage to negotiate mandetory feature SIGN for dcerpc auth_level 6"

Vide: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1357471

Am I missing something?!

I upgraded to Samba 4.1.11 but, this problem still persist.

What can I do?

Thanks!
Thiago