After five-ten minutes of being in the tower, it'll automatically remove me under the guise of 'You have left your current fireteam'. Keep in mind I'm remaining active during this period. I got an invite to return and upon loading in to the server, it immediately gave me the same message and kicked me. Now whenever I return to the tower I have around ten minutes before it removes me. Bungie at this point goofing In the tower is more fun than the actual game so can you? Please can you? Can you just? I'm not even kidding though.