Hi, We have a Samba Domain controller running on Samba 2.2.3a-6 It was running perfectly fine until a week ago , and then suddendly some people are unable to login to the server and their profile does not get loaded. The error given is profile cannot be copied. etc etc. The errors in /var/log/samba for all the machines is as under : 2004/04/20 11:31:40, 0] lib/util_sock.c:matchname(900) sys_gethostbyname(garg): lookup failure. [2004/04/20 11:31:40, 0] lib/util_sock.c:get_socket_name(967) Matchname failed on garg 172.16.0.60 [2004/04/20 11:32:08, 0] smbd/service.c:make_connection(248) garg (172.16.0.60) couldn't find service netlogon [2004/04/20 11:47:49, 0] lib/util_sock.c:matchname(900) sys_gethostbyname(garg): lookup failure. [2004/04/20 11:47:49, 0] lib/util_sock.c:get_socket_name(967) Matchname failed on garg 172.16.0.60 [2004/04/20 11:58:08, 0] lib/util_sock.c:matchname(900) sys_gethostbyname(garg): lookup failure. [2004/04/20 11:58:08, 0] lib/util_sock.c:get_socket_name(967) Matchname failed on garg 172.16.0.60 [2004/04/20 12:10:42, 0] rpc_server/srv_netlog.c:api_net_sam_logon(206) api_net_sam_logon: Failed to marshall NET_R_SAM_LOGON. [2004/04/20 12:10:42, 0] rpc_server/srv_pipe.c:api_rpcTNP(1200) api_rpcTNP: api_netlog_rpc: NET_SAMLOGON failed. [2004/04/20 12:10:47, 0] lib/util_sock.c:matchname(900) sys_gethostbyname(garg): lookup failure. [2004/04/20 12:10:47, 0] lib/util_sock.c:get_socket_name(967) Matchname failed on garg 172.16.0.60 [2004/04/20 12:46:53, 0] lib/util_sock.c:matchname(900) sys_gethostbyname(garg): lookup failure. [2004/04/20 12:46:53, 0] lib/util_sock.c:get_socket_name(967) Matchname failed on garg 172.16.0.60 This is the same for all the machines. I checked teh dns entries, dhcp enteries , everything is allright. I am unable to understand anything on this. Kindly help. Regards, Vijay.