[Samba] Win7 SLOW printing

[Ryan Suarez]

Greetings,

We use a dedicated samba-3.3.12+cups-1.3.11 on debian lenny to serve 
printing (with point and print) to windows clients.  We're getting 
complaints that some clients (win7, vista, XP) have to wait an awful 
long time from when they hit 'print' to when the job starts coming out 
of the printer.  Other clients (win7, vista, XP) print right away.

I can tail the cups log and see that as soon as it gets the job, it's 
printed immediately.  The issue is cups does not log the job until a few 
minutes/hours after the problem clients hit print.  I have a problem 
client to try and isolate the problem.  The only difference I can see 
(for now) is that samba logs this when the problem client prints:

[2010/11/15 16:23:34,  1] lib/util_sock.c:open_socket_out(1424)
   timeout connecting to 192.168.76.10:445
[2010/11/15 16:23:42,  1] lib/util_sock.c:open_socket_out(1424)
   timeout connecting to 192.168.76.10:139
[2010/11/15 16:23:42,  1] libsmb/cliconnect.c:cli_start_connection(1657)
   cli_start_connection: failed to connect to OA-C126-DGC<20> 
(192.168.76.10). Error NT_STATUS_ACCESS_DENIED
[2010/11/15 16:23:51,  1] lib/util_sock.c:open_socket_out(1424)
   timeout connecting to 192.168.76.10:445
[2010/11/15 16:24:00,  1] lib/util_sock.c:open_socket_out(1424)
   timeout connecting to 192.168.76.10:139
[2010/11/15 16:24:00,  1] libsmb/cliconnect.c:cli_start_connection(1657)
   cli_start_connection: failed to connect to OA-C126-DGC<20> 
(192.168.76.10). Error NT_STATUS_ACCESS_DENIED
[2010/11/15 16:24:09,  1] lib/util_sock.c:open_socket_out(1424)
   timeout connecting to 192.168.76.10:445
...

A client that prints right away does not get the error above.  Why is 
samba trying to initiate a connection to this client?  Could this be the 
cause of their delay?

thanks and much appreciated,
Ryan