Hey there is a notice that says this

In order to strengthen the security of the Square Enix Account system, support for the SSL 3.0 protocol will end on Jul. 22, 2015.
Due to this change resulting in only TLS 1.0, TLS 1.1, and TLS 1.2 protocols being enabled, it is possible that some browser settings may prevent use of the Square Enix Account system.

[Affected Services]

・FINAL FANTASY XIV
・The Lodestone
・Mog Station
・FINAL FANTASY XIV: Libra Eorzea
・FINAL FANTASY XIV Forum
・Square Enix Account Management System
・Square Enix Support Center

For Game Console
If you are unable to access the above services, please update your game console software to the latest version.
Sony Computer Entertainment systems: System Software Update

Dunno if this has anything to do with it...