As I am seeing alot of people still getting 3102 error after 4-5 hours, I decided to make this thread.
I dont know if waiting is a real solution, but it worked for me.
When the 3102 screen popped up''bla bla still logged in, wait a few moments'', I just let it be. Afked for 10-20min and could log in again. Maybe the key is leaving the 3102 error screen for a few min, or maybe im just delusional.

Try it I'd say....
Good luck.