Some of our servers are experiencing network issues. According to the hosting provider for those servers,
We are currently experiencing a massive DDoS attack reaching 10Gbps against our Atlanta network. We are working to mitigate it as quickly as possible.
We are currently mitigating what seems to be DDoS against random IPs in our network.
Sorry for the inconvenience. We will move the affected servers to a new location if the issues continue to arise.