Are you running Trendmicro Firewall by any chance?
I'd so suggest disable it and enable Windows Firewall, to avoid much
excercise of opening few ports.
I remember reading an article on enabling some ports for Activesync
http://www.microsoft.com/windowsmobile/help/activesync/troubleshoot.mspx
When I was running the Trendmicro Firewall with my 5472 build it gave me an
error.
I was able to just connect the device.
I have another problem though: When I connect my mobile device it gives me
the green screen asking me to connect the device: 1) set up my device
(allowing me to sync Contacts, Calander etc. and 2) Connect without setting
up.
It connects seamlessly when I choose the 2nd option.
When I try to setup my device to enable sync (option 1), it tells me that
the software update for Windows Mobile Device Center (WMDC) is not available
on the Microsoft Update, and that i can download it and install WMDC update
software from the Windows Mobile web site! but I don't see it anywhere on the
web site.