samba - Feb 2002 - wbinfo -t - sometimes secret good, secret bad, or Could not chec k secret messages

I downloaded from cvs today to solaris 2.7 server samba head 3.0alpha15.  
getent passwd shows users
getent group shows small groups (e.g., domain admins but not domain users)

wbinfo -t showed secret good, then secret bad, and now reports could not
check secret

I see the following in log.winbindd (debug level at 3):
Any ideas what is going on and what to do to fix it? 

Connecting to 10.1.4.4 at port 445
[2002/02/22 10:03:19, 2] lib/util_sock.c:open_socket_out(915)
  error connecting to 10.1.4.4:445 (Connection refused)
[2002/02/22 10:03:19, 3] lib/util_sock.c:open_socket_out(887)
  Connecting to 10.1.4.4 at port 139
[2002/02/22 10:03:19, 3] nsswitch/winbindd_misc.c:winbindd_check_machine_acc
t(88)
  secret is good
[2002/02/22 10:03:21, 3] nsswitch/winbindd_misc.c:winbindd_check_machine_acc
t(49)
  [14403]: check machine account
[2002/02/22 10:03:21, 3] nsswitch/winbindd_cm.c:connection_ok(381)
  Connection to PDC for domain INS (pipe \PIPE\NETLOGON) was never initialis
ed!
[2002/02/22 10:03:21, 3] nsswitch/winbindd_cm.c:cm_get_ipc_userpass(235)
  IPC$ connections done anonymously
[2002/02/22 10:03:21, 3] libsmb/cliconnect.c:cli_full_connection(1231)
  Connecting to host=PDC share=IPC$