from another thread -
We've had no downtime, that's completely solved. We get instant email and txt-message alerts of any downtime but there hasn't been any. Most likely your IP got temp-banned, which can happen if you load many pages in a short amouint of tiem, such as makign cahnges to your gateway and then refreshing repeatedly to see the effect. We'll be able to lower our firewall rules to prevent this real soon. It doesn't affect users, only publishers, because you have to keep loading pages for it to happen.