Could not get info for user -- wbinfo

Hi Experts,

I'm not able to get the info of user's from wbinfo.
But I'm able to join the user in domain(net rpc join -U username....).
I have deleted the *.tdb file under /var/lib/smaba and
set winbind cache time = 40 and restarted the winbind,

Still it not works..

And not able to login with the AD accounts.!!

Please help out with the possible solutions..

Thanks!!