domain users cant access or login to shares from samba

I have configured samba 3.6.3 in sles 11 sp3. it was working fine but after a upgrade of kernal with all packages samba is not allowing domain users to login to samba or access the shares.my public shares are accessible and local smbuser ‘testuser’ can access the shares with .\testuser option from windows and linux. When i check i found that samba is not upgraded and same packages still samba-3.6.3-76.1

i tested join status with domain using wbinfo and it is properly showing users list, Can somebody help me on this please.

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