We have Openldap-2.2.13-2 as backend to SambaPDC . we have a mixed client senario (Linux and WinXP 32/64 bit) . Linux machine are no problem but so are win 32 bit boxes. But on Win Xp 64 bit boxes random users cant login with some RPC procedure error. This problem is not experienced by all but on some random users.

Plzz Help 

Our smb.conf file :

passdb backend = ldapsam:ldap://127.0.0.1
        passwd program = /usr/sbin/smbldap-passwd %u
        passwd chat = *New*UNIX*password* %n\n *ReType*new*UNIX*password* %n\n *passwd:*all*authentication*tokens*updated*successfully*
        unix password sync = Yes
        log level = 2
        log file = /var/log/samba/%m.log
        max log size = 50
        socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
        printcap name = /etc/printcap
        add user script = /usr/sbin/smbldap-useradd -m '%u'
        delete user script = /usr/sbin/smbldap-userdel %u
        add group script = /usr/sbin/smbldap-groupadd -p '%g'
        delete group script = /usr/sbin/smbldap-groupdel '%g'
        add user to group script = /usr/sbin/smbldap-groupmod -m '%u' '%g'
        delete user from group script = /usr/sbin/smbldap-groupmod -x '%u' '%g'
        set primary group script = /usr/sbin/smbldap-usermod -g '%g' '%u'
        add machine script = /usr/sbin/smbldap-useradd -w '%u'
        logon script = login.bat
        logon path = \\%N\Profiles\%u
        logon drive = H:
        logon home = \\%L\%u
        domain logons = Yes
        os level = 25
        preferred master = Yes
        domain master = Yes
        ldap admin dn = cn=Manager,dc=diat,dc=ac,dc=in
        ldap machine suffix = ou=Computers
        ldap suffix = "dc=diat,dc=ac,dc=in"
        ldap ssl = no
        ldap user suffix = ou=People
        remote announce = 192.168.250.255 192.168.31.255 192.168.33.255 192.168.251.255
        remote browse sync = 192.168.250.255/DIAT.AC.IN 192.168.31.255/DIAT.AC.IN 192.168.33.255/DIAT.AC.IN 192.168.251.255/DIAT.AC.IN
        idmap uid = 16777216-33554431
        idmap gid = 16777216-33554431
        cups options = raw
        preserve case = No
        short preserve case = No

[homes]
        comment = Home Directories
        read only = No

[netlogon]
        comment = Network Logon Service
        path = /ad/netlogon
        valid users = root
        read only = No
        browseable = No
        share modes = No

[Profiles]
        path = /ad/profiles
        read only = No
        create mask = 0600
        directory mask = 0700
        guest ok = Yes
        browseable = No

[printers]
        comment = All Printers
        path = /var/spool/samba
        printable = Yes
        browseable = No

Varun