Aug 31, 2011 10:03 AM|hi_i_am_amit|LINK
I found the root cause of the issue. The root cause was that the server and domain had NoLMHashPolicy configured. This meant that windows would not store the LM hash value of the password. Since the NTLM protocol implementation we computed only the LM hash
value and the NT Hash, the authentication failed.
The fix involves modifying the protocol implementation to compute the NT Response Hash before sending the Type3 message to the server.
Thanks for the help.