From what I understand, the error is in the routing to the servers. Some people have said it has to do with your router settings but it's still an issue for me even after I opened up the FFXIV:ARR specific ports. No news on the dev side of this error. There are at least a dozen different threads in the last month or so on this error. I'm guessing because it's not technically an "SE Server" issue and more about connecting to the server they are just brushing it under the rug. The strangest thing is it was only after the last big patch that I had this issue. Nothing in my household has changed, my service provider and hardware are all the same. Just doesn't make any sense to me.