Thank you for the reply Ploudret.

You might want to check if the following port ranges are open in your router. You can contact your ISP and request that they open them for you:
▼TCP
54992 through 54994,
55006 through 55007,
55021 through 55040

I'd also suggest performing a clean boot. For Windows 7, Click Start, type msconfig.exe in the Start Search box, and then press Enter to start the System Configuration utility. On the General tab, click the Selective startup option, and then click to clear the Load startup items check box. On the Services tab, click to select the Hide all Microsoft services check box, and then click Disable all.

We hope we can be of assistance in helping you enjoy the exciting world of Final Fantasy XIV!