Authentication problem in samba.

[Molumuri, Janardhan]

Hi,

I am using samba-2.2.8a.
I am getting the following error intermittently, when i try to connect it is
asking for passwd again and again .... 
event though the password entered is right.

Can you throw some light on this?

from smbd.log
~~~~~~~~~~~~~~
[2004/04/10 08:15:01, 1] smbd/password.c:pass_check_smb(545)
  Couldn't find user 'asridhar' in passdb.
[2004/04/10 08:15:01, 1] smbd/reply.c:reply_sesssetup_and_X(1023)
  Rejecting user 'asridhar': authentication failed
[2004/04/10 08:15:04, 1] smbd/password.c:server_validate(1176)
  password server XXX.HYD.CORP.INT.UNTD.COM rejected the password
[2004/04/10 08:15:04, 0] passdb/pdb_smbpasswd.c:pdb_getsampwnam(1369)
  unable to open passdb database.
[2004/04/10 08:15:04, 1] smbd/password.c:pass_check_smb(545)
  Couldn't find user 'asridhar' in passdb.
[2004/04/10 08:15:04, 0] passdb/pdb_smbpasswd.c:pdb_getsampwnam(1369)
  unable to open passdb database.
[2004/04/10 08:15:04, 1] smbd/password.c:pass_check_smb(545)
  Couldn't find user 'asridhar' in passdb.
[2004/04/10 08:15:04, 1] smbd/reply.c:reply_sesssetup_and_X(1023)
  Rejecting user 'asridhar': authentication failed
[2004/04/10 08:15:06, 1] smbd/password.c:server_validate(1176)
  password server HYDGCS01.HYD.CORP.INT.UNTD.COM rejected the password
[2004/04/10 08:15:06, 0] passdb/pdb_smbpasswd.c:pdb_getsampwnam(1369)
  unable to open passdb database.
[2004/04/10 08:15:06, 1] smbd/password.c:pass_check_smb(545)
  Couldn't find user 'asridhar' in passdb.
[2004/04/10 08:15:06, 0] passdb/pdb_smbpasswd.c:pdb_getsampwnam(1369)
  unable to open passdb database.
[2004/04/10 08:15:06, 1] smbd/password.c:pass_check_smb(545)
  Couldn't find user 'asridhar' in passdb.
[2004/04/10 08:15:06, 1] smbd/reply.c:reply_sesssetup_and_X(1023)
  Rejecting user 'asridhar': authentication failed
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