Einmimiria,
I am going to be very direct here as the information provided by you on this is inaccurate as I work for an ISP and I am having this same problem that everyone else is having and it is NTT specifically and I have looked at other's routing tables. When you look at a trace route the first 4 hops are your customer's ISP, once it is past that portion this is the routing table configured specifically for your company (Square Enix) to reach the customer who is paying to have access to the game. From every hop I'm seeing including my own these customers are well past the ISP so instead of giving false information, let's be clear that the issue are not on multiple ISP's but in nature the routing table which the breakdown is where the route is set up for the Square Enix servers that run through NTT. It's time to own up and fix and issue instead of passing the blame. Let's work to get the issue resolved and stop pointing the finger whereas Square needs to contact whom sets up the routing for the servers and have NTT removed from that route, end of story. As an fyi mine is happening at night as well and it is really bad. When is this going to be addressed and fixed? This has gone on long enough and I'm paying for something I can't use!