Who causes DDoS Attack and how to prevent it?

[Ashbury]

Doubt was DDoS. Servers were fine for me.

It appears it wasn't targeted specifically at FFXIV. Comcast was having outages across the US yesterday. Affecting FFXIV specifically, it seens if your connection was routed through NTT, you were losing 60% of your packets.

That's why some people got affected, some weren't. If your connection weren't going through what was being DDOs, you were fine.

As for preventing, you pretty much can't because you can't pinpoint where the attack is coming through. You can try to block what appears to be an attack vector but you get a lot of false positives.