[Samba] Samba 4.1.11 member server (Files server) bugs

[Chan Min Wai]

Dear All,

Anyone have any hints on bugs affecting samba 4.1.11 acting as a member
server?

I've some complain about Office 2013/365

They said that network share are not available and force to exit and
documentation recovery are not possible. (But as I can see the network are
still working fine...)

The same configuration on samba 3.6.x are working without problem.
Below are my configuration files
Please help.

[global]
        workgroup = AMTB-WORKGROUP
        security = ADS
        realm = KL01.AMTB-M.ORG.MY
        idmap config * : backend = tdb
        idmap config * : range = 60001-70000
        idmap config AMTB-WORKGROUP : backend = ad
        idmap config AMTB-WORKGROUP : schema_mode = rfc2307
        idmap config AMTB-WORKGROUP : range = 500-50000

        winbind nss info = rfc2307
        winbind enum groups = yes
        winbind enum users = yes
        winbind use default domain = Yes

        winbind refresh tickets = yes
        winbind offline logon = yes
        winbind nested groups = yes
        winbind max clients = 500

        winbind cache time = 300
        idmap cache time = 300
        idmap negative cache time = 300

        client max protocol = SMB2

#       kerberos method = secrets and keytab

        #Guest OK
        guest account = nobody

        #CTDB Cluster
        netbios name = AmtbCluster
#       clustering = yes
#       ctdbd socket = /var/lib/ctdb/ctdb.socket
#       idmap backend = tdb2


        LOG Level = 1 winbind:3
        max log size = 2000
        load printers = no
        wins support = Yes
        map acl inherit = Yes
        hide unreadable = Yes
        dont descend = /proc,/dev,/etc,/lib,/lost+found,/initrd
        store dos attributes = Yes
        vfs object = recycle acl_xattr fileid

        #ocfs2 ctdb
        fileid:mapping = fsid

        #extd_audit
        recycle:keeptree = yes
        recycle:versions = yes
        recycle:repository = .recycle
        recycle:touch_mtime = yes
        recycle:exclude = *.tmp, *.bak
        recycle:exclude_dir = .recycle

[homes]
        comment = %U, %u Home Directories
        valid users = %S
        read only = No
        hide files =
/desktop.ini/outlook*.lnk/*Briefcase*/ntuser.ini/NTUSER.*/
        veto files = /.ssh/Maildir/
#       inherit permissions = yes

[profiles]
        comment = Network Profiles Share
        path = /home/samba/profiles
        read only = No
        #store dos attributes = Yes
        browseable = no
        hide files =
/desktop.ini/outlook*.lnk/*Briefcase*/ntuser.ini/NTUSER.*/
        inherit permissions = yes

[print$]
        comment = Printer Driver Download Area
        path = /home/printers

[public]
        comment = Public Software
        path = /amtb/soft
        read only = No
        guest ok = Yes

[Docs]
        comment = Amtb Documents
        path = /amtb/docs
        valid users = @documents
        write list = @documents
        force group = documents
        read only = No
        create mask = 0770
        force create mode = 0770
        directory mask = 0771
        force directory mode = 0771