update: I was getting that error when trying to create trial accounts, I changed the e-mail address, and the error still came up.

I changed my IP address using the method mentioned above (changed the mac Address to my PC's mac address instead of the default router one) and rebooted the modem and router. I even used the old email address that i had used for the other trials.

The error went away.

So zin, its either a some what recent change, or somehow cookie based.