Hello! Pre-condition: 1. Ubuntu 14.04 with updates installed 2. Samba 4.2.2 from Sernet repo 3. Pure Windows 2012 R2 server Both Linux and Windows are fresh systems, no antivirus on Windows, no firewall on Linux. AD was provisioned by https://wiki.samba.org/index.php/Samba_AD_DC_HOWTO manual. sernet-samba-ad package installed, SAMBA_START_MODE="ad" in /etc/default/sernet-samba All test from manual was performed. When I open Group Policy Management and go to my domain on 20012r2 server, I got an error "A processing error occurred collecting data using this base domain controller." - http://gyazo.com/acddc79bbc252b054d959b8be58f6f23 There are no such error on 2008r2 sever. https://lists.samba.org/archive/samba/2014-March/179590.html Please, help me fix this of report this but properly. -- Bogdan Rudas Head of Minsk IT Support Department Exadel Inc. http://www.exadel.com/ E-mail: brudas at exadel.com <mandrushkevich at exadel.com> Skype ID: bogdan.rudas