Ish mostly due to this http://www.playonline.com/ff11us/polnews/news4524.shtml
About a week or two ago when I was on FFXI, I was disconnected two or three times within half an hour, which wasn’t good, especially as I was trying to party at the Dunes at the time. Luckily, because it was happening to pretty much everyone else, nobody was angry at me (there is nothing worse than to have the party’s main healer disappear suddenly when in the middle of a party battle), and we just picked up from where we left off.
It is annoying as hell, but there isn’t too much you can do about it except try and log back in and hope to Altana that the server stabllises.