[Samba] Samba with Active directory integration problem

[Velusamy.K]

Hi,
    I have followed the all the steps given, in 
https://help.ubuntu.com/community/ActiveDirectoryWinbindHowto.  to 
integrate the samba with active directory.

I have the following configuration file,
[global]
     workgroup = ASSURANCE
     security = ads
     realm = ASSURANCE.LOCAL
     encrypt passwords = yes
     winbind separator =  +
     idmap backend = lwopen
     idmap uid = 10000-20000
     idmap gid = 10000-20000
     winbind enum users = yes
     winbind enum groups = yes
     template homedir = /dev/null
     template shell = /bin/true


[adshare]
     path = /home/velusamy/Pictures/
     writable = yes
     valid users = ASSURANCE+velu
     browseable = yes

Now, executed the smb-clinet.
     smbclient //192.168.5.136/adshare -U velu
It asked password, given, it connected to the share.

But, I was unable to access the share form different machine which is 
connected in the same network.
It said the following error.
     smbclient //192.168.5.136/adshare -U velu
     Enter velu's password:
     session setup failed: NT_STATUS_LOGON_FAILURE
Kindly anyone please help me out form this problem.. I could not solve 
this issue for las two days. Please help me out.


Thanks,
Velusamy.