I was about to upload an app to iTunes connect, but the application loader has been stuck at the stage of \"Verifying assets with the iTunes Store\" and pending for almost a
I develop apps for a company that has rather tight security constraints. I had this same issue trying to publish from behind the firewall so I got on the phone with our networking guy and sure enough there is an SSH connection to Apple that opens up to upload the app. While it makes perfect sense to secure your livelihood in transit using a SSH tunnel, to a set of security rules on a firewall it can raise flags.
If you try everything and you are publishing from within a business, consider checking the security constraints to see if you your access to Apple for that final upload isn't being blocked by default.