Try this......
Another thing that may be worth trying: run a Clean Boot: http://help.ea.com/en/article/how-to-clean-boot-yo
This should ensure that no programs are interfering in the background.
Check your firewall to be sure it is open to the game and not blocking it.
See programs below known to make issue...
Disable Mantle if you have it and try Direct X, Turn OFF Anti-Aliasing Deferred in video card settings in game. If you have page file turned off then turn it back on as this can make errors even with 32gigs ram.
Others have said if they uninstall MSI Afterburner issues / crashing is stopped. So if you have this installed remove program and test BF4. Also look at other programs as Asus Game First Service, Razer synapse, Razer Cortex, Qualcomm Killer Service , Fraps, EVGA Precision, Geforce experience, be sure to turn off the streaming function that is enabled by default ,Raptr, RivaTuner , ASRock eXtreme Tuner, Steam, Skype, aero ,Overwolf extra program in teamspeak and xfire are known to make issues as well. And I am sure more programs not in my list yet turn one off at a time and test BF.
On my Firewall all ports/connections are open to the game
Clean boot didn't help
I don't have mantle, anti aa is off and pagefile is manages by windows.
I don't understand how the game started fine once and then doesnt work again!
