I can also play coop with a friend, only mp isnt working!
Try this / update all this...
Latest version of DirectX see this page
http://www.microsoft.com/en-ca/download/confirmation.aspx?id=35
Reinstall Microsoft C++
NOTE>>> you need to select the x64 or the x86 file depending on what architecture your computer has. To find this out, Click Start, right click on "Computer" and select "Properties". Under system type is should say "32-Bit Operating System" or "64-bit Operating System". If 32-bit operating system, download the x86 file, and if 64-bit download the x64 file.
http://www.microsoft.com/en-US/download/details.aspx?id=40784
Update your Microsoft .NET framework.
http://www.microsoft.com/en-ca/download/details.aspx?id=30653
Adobe Flash Player update
http://get.adobe.com/flashplayer/
Go to Punk Buster site
http://www.punkbuster.com/index.php?page=pbsetup.php
1- Download PB then extract files to your desktop.
2- Open Punk Buster folder.
3- Click on the PB setup and it will open.
4-Add your BF3 game to punk buster its at the top of Punk Buster.
5-Then update punk buster again at the top of Punk Buster.
Reboot PC test BF3
All of these are already installed/updated, I reinstalled everything just to be sure aswell.
I've managed to get into a round, but when I got out and tried to connect to another server it did the same, trying to connet to the same server I was previously didn't work either. I honestly have no idea of what could be doing this
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!
