Hi all, Can somebody help me solve the foll. error. I have installed samba in 4 servers (sol8 in 3 nos and sol7 in 1 no) and have configured for our NT domain validation (have pointed it to our domain server) and it has been working fine for more than 2 weeks. Now suddenly all the servers are asking for user name and passwords. I tried stopping and restarting the daemons. Still the same condition. Then I tried giving the smbpasswd -j -r command. It is giving the foll. error. #smbpasswd -j milkyway -r alpha cli_net_req_chal: Error NT_STATUS_NOT_SUPPORTED cli_nt_setup_creds: request challenge failed modify_trust_password: unable to setup the PDC credentials to machine ALPHA. Error was : NT_STATUS_NOT_SUPPORTED. 2001/10/08 13:42:28 : change_trust_account_password: Failed to change password for domain MILKYWAY. Unable to join domain MILKYWAY Can some one tell me how to solve it and what is the reason for the sudden stoppage of validations. Thanks and Regards, S. Ravishankar. *********************************************************************** Disclaimer: This document is intended for transmission to the named recipient only. If you are not that person, you should note that legal rights reside in this document and you are not authorized to access, read, disclose, copy, use or otherwise deal with it and any such actions are prohibited and may be unlawful. The views expressed in this document are not necessarily those of HCL Technologies Ltd. Notice is hereby given that no representation, contract or other binding obligation shall be created by this e-mail, which must be interpreted accordingly. Any representations, contractual rights or obligations shall be separately communicated in writing and signed in the original by a duly authorized officer of the relevant company. ***********************************************************************