If the game says "logging you out because you're connecting from a 2nd place," this suggests the disconnect comes from the client side as the server still thinks you are connected to the game.
Make sure that you do not have any other programs/overlays in the background and make an exception for any anti-virus or firewalls you may have.
Check the following Port Ranges on your router/modem to ensure that the following Port Ranges have been opened/forwarded/triggered:
▼TCP
54992 through 54994,
55006 through 55007,
55021 through 55040
*You may learn how to do this by visiting
http://www.portforward.com/
Find your specific router's brand and model number from the 'List of Routers' and you will be provided a step-by-step guide on how to access these port settings.
Otherwise, your ISP may forward these ports for you.*