There are couple ways you can work around it for now.

Quoted from http://forum.square-enix.com/ffxiv/t...onnect../page5

Quote Originally Posted by Aria_Stars View Post
unfortunately until this is fixed, the best thing I can suggest is to use a proxy tunneling service like Smoothping, WTFast, Battleping, etc (and the many other variants) because it will change the route your internet takes to the FFXIV servers. It's fixed my issues so far.
I don't know about the others, but WTFast offers 30 days free trial. So until the issue is fix, you guys should definitely give it a go.