I started this thread because my problem might me kind of unique.
It started all with a connection lost after the update when I logged in for the first time after that. I got banned instantly and followed the steps everyone mentions. With exceptions and deactivating Antivirus (Windows defender and Avira)
Because nothing works I deinstalled Discovery, Freelancer and my Antivirus completely and set up a new Freelancer and downlaoded a new Discovery.
After all I've got a new account with a new Char to work properly.
But my old main account doesnt work. Still same problems with connection lost and instant ban.
So after all that I really don't know what to do right now.