fc6 ssh/rsync 60 second delay

[Mike Wright]

Hi all,

This is my third day of chasing it and am still trying to resolve this 
issue.

Left the box running overnight but by morning it had hung.  Reboot found 
a trashed format: disk completely inaccessable, so...

Just performed a clean install of fc6 and have not added any new 
packages or any other software.  The machine was given a host name that 
resolves with dns.  Just to be sure iptables/ip6tables was disabled on 
machines at both ends of the connection.

I opened an xterm just beneath the clock, ssh'd to a remote machine on 
the same subnet, then ssh'd back to the new fc6 box.  It gave me back a 
password prompt.

At 9:00:00 I pressed enter in response to the password request
At 9:00:40 the message "Last login: Sun Nov 5...."
At 9:01:00 I finally got the remote system prompt [mike at test ~]$

I repeated this numerous times and each time it took exactly 60 seconds: 
40 seconds until the "Last login" message, then 20 more until the sytem 
prompt.

I think this 20/40/60 seconds may be the clue, but don't know what 
services/processes have those numbers hard coded into them.

ssh/rsync outbound works correctly; only inbound connections have this 
problem.

Has anybody else experienced this?  Would definitely appreciate help 
with this.

Thanks,
Mike Wright