Seriously

[whilke]

They can't resolve something they can't fix. Whether people like to hear it or not, SE don't have control the Internet and how your traffic to them is routed. We already know from other threads that certain ISPs do filter traffic (older BT Internet contracts in the UK for example) so even if the ISP says the traffic isn't filtered, that isn't necessarily true (the person actually talking to customers, isn't the person in charge of traffic routing, they're just giving you the information as they've been told which may/may not be up to date).

Even if the traffic isn't being filtered, that doesn't mean it isn't somewhere else on route either as it'll have to pass through multiple networks to get to SE. People keep posting traceroutes to show their path to SE, but all that shows is the path, it's not a good guide to the actual flow of data. The ICMP ping times are a completely different protocol to the TCP/UDP packets that the game uses when playing. ICMP traffic is rarely filtered because by design it's there for diagnostic purposes, TCP/UDP traffic are both filtered all the time.

This is in their realm of being able to fix. It's their network protocol running over TCP, and their backend/client code to sync that up. Right now, their system does not handle packet loss and jitter very well. That's the problem. This isn't a big issue in most games over TCP since they don't have twitch style play. Other twitch games run over UDP and can work with pack loss easier.

FFXIV end game is 50% twitch, but their protocol is not designed for that.

On top of that, it's their responsibility to ensure that their protocol and system are not getting throttle by any mid tier circuits, or major backbones.

Otherwise, they will just lose the subscribers that are being affected by this. Maybe they are fine with that.