For what it's worth, I have Comcast and I'm all the way in north Florida, yet I don't have any of the problems described in this thread. Typically if I have a problem, it's something being caused by Comcast directly (like a local outage or system maintenance) or it's a straight problem with the server itself.
And these are my routes from when I first hit NTT.
9 101 ms 101 ms 118 ms ae-7.r04.miamfl02.us.bb.gin.ntt.net [129.250.2.202]
10 17 ms 18 ms 18 ms ae-6.r20.miamfl02.us.bb.gin.ntt.net [129.250.3.141]
11 41 ms 41 ms 43 ms ae-4.r23.asbnva02.us.bb.gin.ntt.net [129.250.2.86]
12 99 ms 98 ms 100 ms ae-10.r22.snjsca04.us.bb.gin.ntt.net [129.250.6.237]
13 103 ms 101 ms 102 ms ae-40.r02.snjsca04.us.bb.gin.ntt.net [129.250.3.121]
14 102 ms 102 ms 102 ms ae-3.r00.scrmca02.us.bb.gin.ntt.net [129.250.7.11]
15 103 ms 101 ms 102 ms xe-0-1-0-1-1.r00.scrmca02.us.ce.gin.ntt.net [129.250.195.46]
16 102 ms 102 ms 103 ms 204.2.229.234
17 102 ms 102 ms 102 ms 204.2.229.10

Originally Posted by
Fhaerron
Can somebody explain this to me? SE says it's a routing issue, but all these other games don't have routing issues then? Why does SE have this issue?
***incoming rambling derail***
Because of how routing works. You may have issues with Service A while Service B works just fine because something between your location and Service A is disrupting your signal, but there's nothing along B's path to hamper your connection. In other words, because your connection to both services are going along different "routes". The interruption could be caused by any number of things, but it's often times congestion caused by there being more connections than the node being passed through can handle. In fact, you can generally bet your bottom dollar on the problem being congestion if it mostly happens during very specific times of the day.
It's just like real life automobile traffic; certain times of the day certain areas of a city (older ones especially) might become heavily congested with stop-and-go traffic because there are too many cars trying to pass through the same few intersections. Internet routing is the same way, except it's just data across wires instead of cars on asphalt. If there are more cars (data/connections) than the intersection (node) can handle, you start getting traffic jams (slow or dropped connections or lost packets). Other areas of the city may not experience traffic jams at all even though it has the same number of cars going through just because it's better designed and can pass more cars through each intersection at once. You could think of FFXIV being on the outskirts of the congested area and something else like Warcraft being in the opposite direction in the freer-flowing area of town: it's easier to reach Warcraft because you don't have to deal with that traffic jam. In addition, some people may not have trouble reaching FFXIV either, even during rush hour, because they're traveling from a direction that bypasses the traffic congestion.
Does this make any sense? Am I rambling? I feel like I'm rambling. I think I'll add a rambling disclaimer. I also kind of forgot what we were even talking about. What was the question? Who are you? Who am I? Oh god I think I'm having an existential crisis!
Ah I'm bored with myself now.