[Samba] working file server, but logs filling with NT_STATUS_ACCESS_DENIED

[Barnaby Scott]

Hi, I wonder if anyone can help with this.

I have a Samba server (Samba 3.3.3 running under FreeBSD 7.1-RELEASE), 
with 3 Windows workstations all running XP Professional and 3 laptops (1 
XP home,1 XP professional, 1 Vista). There is no Windows domain 
invloved, just a workgroup.

Everything works absolutely fine, except that my logs are filling up 
with errors similar to this:

[2009/05/02 18:40:10, 0] smbd/service.c:make_connection_snum(740)
create_connection_server_info failed: NT_STATUS_ACCESS_DENIED

I cannot trace this to any particlaur activity by any user - in fact 
many of these errors occur at a similar time at around 3am every night, 
when there is certainly no user activity.

Obviously to troubleshoot this properly you will need logs etc. I have 
copied  my smb.conf below, but to save me posting all sorts of 
irrelevant stuff, perhaps a first step would be to let me know what else 
is needed in order to look into this further. Or perhaps there is 
something obvious I have done wrong already!

I can find literally only 2 Google hits for the exact string 
"create_connection_server_info failed: NT_STATUS_ACCESS_DENIED", neither 
of which are relevant to my situation. Any help would therefore be very 
gratefully received!

Thanks

==smb.conf===============================

[global]
    workgroup = CHADLINGTON
    server string = Samba Server
    map to guest = Bad User
    passdb backend = tdbsam
    log level = 3
    log file = /var/log/samba/log.%m
    max log size = 50
    smb ports = 139
    dns proxy = No
    hosts allow = 192.168.1., 127.0.0.1
    hosts deny = ALL

[homes]
    comment = Home Directories
    read only = No
    browseable = No

[printers]
    comment = All Printers
    path = /var/spool/samba
    printable = Yes
    browseable = No

[music]
    comment = shared music
    path = /home/music
    write list = @samba-clients
    guest ok = Yes

=========================================