I'm having the same problem, and I was also in Jeuno. I was auto-following a friend while I went to take my dog out, returned to my character being d/c'd mid-entering another map. And ever since then, I cannot log into my character. Just keep getting error 3001. It has been happening since 5pm yesterday. And, It not only happens on my PC, it happens on two different xbox's. I for one, see a pattern with everyone saying it was Jeuno they were leaving/inside, you can't say it is just a coincidence. Not trying to be rude, but I would like to actually get my moneys worth and be able to play the game. If I can't play before the upcoming monday, i'm just going to cancel my account, and not touch another SE game. Because there is no point of paying for an error code.
Thanks~
K-Rupt