Game disconnected: client closed down connection. DURING GAME.

i had this problem in with bf3 and by portforwarding and disabling printer sharing i was able to fix it.

in the bf4 beta i never had this problem

now somehow its back in the full game. what the hell are they doing over at EA? this problem has been going on throughout the whole lifecycle of BF3 and now they release a whole new game and THEY STILL HAVEN'T FIXED IT!