I came back about a month ago and have been having this problem. I haven't bothered to post in any of the stickied threads because it seems pointless, there's no response from square to any of it, all of the traceroutes show where the problem is and on multiple ISPs. I keep hearing about how ISPs are treating FF14s connection, I don't know a whole lot about the issue but it sounds like SE needs to talk to some people about that.

I'll say that about a week ago after getting really close to just uninstalling the game and being done with it, I tried out the recommended WTFast vpn thing and I am able to play again which is great because I really do enjoy the game. I don't know a whole lot about WTFast or how it works exactly but if you're on PC I'd suggest looking into it, or something similar.

And to the people who keep saying "it's just a small amount of players, who cares" wait until you're on that list of players who literally can't play the game they're paying for. I've only played a few months total, I can't imagine how I'd feel if this happened to me after playing the game for years.