samba - Feb 2008 - problem with samba+winbind+kerberos+AD

I have a server with samba+winbind+kerberos+AD sharing files. When users log in
there is NO-DELAY communication with this server, but, after some minutes of
inactivity there is a 5 secs. delay until the server starts offering data.

Log files don't show any net-split, neither user disconnections... there
isn't any unusual info.

Have you any idea about this issue?

I think that relevant information about smb.conf could be like this (I can
attach more if needed):

 domain master = no
 server string = myMachine
 encrypt passwords = yes
 max log size = 50
 socket options = SO_KEEPALIVE TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
 dns proxy = yes 




Esteban Torres Rodr?guez
?REA DE SOPORTE T?CNICO - Administraci?n de Servidores
Subdirecci?n de Sistemas Inform?ticos
Empresa P?blica Desarrollo Agrario y Pesquero, 
email: etorres@dap.es