I had the same problem last night with my main character in Jeuno, but my mules in other cities were unaffected. This morning I was able to log on and go to Windurst to get some seals out of my mog storage and deliver them. I logged back on in Windurst tonight, but when I warped back to Jeuno, I got disconnected again with the same error message (and got it again every time I tried to log back on to that character).

How many other people having this problem are on merged servers? I am on Carbuncle, which was the destination for a merge with Gilgamesh. The combination of that and the problem occurring during peak hours makes me suspect that the merged server has so many players it is crashing high population zones like Jeuno...

In any case, the number of players having this problem simultaneously makes it *very* unlikely it is occurring at the player end. Hopefully the GMs will provide some information soon.