Look who's in the running for worst company again!
I also have this problem. There is a workaround that you can do so that you can play multiplayer however your single player game will still continue to get corrupted.
Before you start Battlefield make sure you go into PS4's settings and log out of PSN
Then start Battlefield and wait until you are at the main menu where you can select between single and multiplayer
Press the PS button to temporarily back out of the game
Go back into settings and log back into PSN
Double tap PS button to immedietly return to game
This actually works. Its a real pain in the ass and all the other network issues are still there like no conquest, empty server lists, and getting dropped from servers. But at least you can play some of the game that you payed good money for. Hope this helps some of you. I know I had a miserable PS4 launch due to this being my only game!! Didn't know about the workaround for 3 days!!
