I am also having the same issue I have not logged into ff XIV since the natural disaster a few months ago and thought it might have been my AV or firewall, i checked those they all listed it as a trusted / allowed app, checked and updated my DNS since I had a dead one in my list. shut down and restarted before and after a reinstall of FF XIV and reinstall of subsequent updates. tried the DMZ, and tried (not in the DMZ) disabling my AV / firewall and other defensive service programs, to no avail. I do not use the built in windows firewall and am running Win 7 ultimate and did not have any issues prior to this.