Every time I change system or Beam down to a planet or else, I lost every time the connection and iam back in the login menu. If I try to reconnect to game, it stucks on "Connect to Account Server" screen and then it goes back to Loginscreen and so on...
Can anybody help? Or have anyone the same problem?

I have the same problem and have had the problem since the open beta started. I believe It has to do with server load. Earlier in the morning during weekdays I have no problem with disconnection problems. But as late afternoon approaches the problem begins and I get disconnected ALMOST every load screen.
Just keep trying to log back in you will eventually get a slot.

The strange thing is that my friends can see me ingame, but iam logged out since switching... And so i must wait 30minutes - 1 hour to relogg.