A few minutes ago aion_trine posted a tweet about network outages for Aion, GW and Lineage 2:
We have been experiencing peer network outages for Aion, GW and Lineage 2 . Our team is investigating the source of these outages
Since Minecraft, EVE Online, League of Legends and games site The Escapist are under “Titanic Takedown Tuesday” attack, we hope it’s not the case with Aion.
We are currently experiencing network outages. We do not have an eta as to when they will stop; however, we do expect to continue experiencing them for the next hour or so. We apologize for the inconvenience and thank you for your patience and understanding. Please continue to monitor our Twitter feeds for more information.