Can't you just open a second instance of FFXI so it fixes the issue, then close that instance? I could be wrong, but it seems like I remember it not re-binding to the first instance when the second is closed.
I don't use an alt or I would just do that. I was hoping there was a way to trigger it without having to do a second instance. It also didn't work when I just logged into a second playonline. I guess it only triggers when you actually hit the game.
Not sure when it actually triggers but maybe they were saying you can login to your main, all the way into ffxi(not just playonline), then just relog into your main?
While in FFXI the first window will say 'someone logged in from another location' but won't close until you hit 'OK'.
So maybe it will work if you do that and don't hit OK until you have your main relogged in from another window?