I am trying to get the MS SQL Serves Login to authenticate users. I ger the following error on the Windows client: Connection failed: SQLState: 28000 SQL Sever Error: 18456 Login failed for user XXXXXXX\XXX When I look at the samba logs I ger the following information: rpc_server/srv_pipe_hnd.c: process_request_pdu procs_request_pdu: failed to do schannel process rpc_server/srv_pipe.c: api_pipe_ntsec_process failed to decode PDU Is there any one who can point me in the right direction. Thanks