Plutonium

when i lunch the game in offline mode and i start a game of zombies, and for example i go to sleep, if the computer goes in stand by and return, it says that i have disconnected to the bo2 online servers and the game returns to the plutonium menù. is there a way to fix?

every time, once origins loads, the game starts with a white screen that never goes away. is there a way to fix it or maybe can you tell me where i can read the answer to this question? thank you !!!