Battlefield 4 Errors and how to solve them

Battlefield 4 launched with several issues, some of them have been fixed with the latest patches, but some crashes and errors still spoil the game. In the list below we covered a number of issues and if you are looking for a solution, take a look at the following conclusions:

Battlefield 4 Errors and Solutions

1. Battlefield 4 DirectX Crash
   Remove existing DirectX and install a new one.
   
   
2. Battlefield 4 DirectX Function (GetDeviceRemovedReason) Error
   
   Solution #1 – Turn off ambient occlusion from the graphics option
   Right click on desktop-> Nvidia Control panel
   From 3D Settings go to Manage 3D settings
   In the Global Settings tab, set the Ambient occlusion to Off
   In the Program Settings tab, set the Ambient occlusion to Off
   
   Solution #2 – Disable the Origin In-Game overlay
   Open the Origin client to “My games”
   Right click on BF3 or BF4 and click “Game properties…”
   Check the checkbox for “Disable Origin in Game for this game”
   Click apply, and then try to start up BF4
   
   
3. Battlefield 4 – Stuck at Loading Screen
   Disable antivirus or firewall
   
   
4. Battlefield 4 Random Crashes on Windows 8
   The only solution is to disable Xfire.
   
   
5. Battlefield 4 stopped working, game doesn’t start
   Solutions:
   Update graphics drivers
   Disable antivirus or firewall
   
   
6. Battlefield 4 Server Connection Problems
   Update your graphics drivers.
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7. Battlefield 4 Random Disconnections (thanks Wiretuts)
   PC users enable the following online ports on your connection:
   TCP: 80, 443, 9988, 20000-20100, 22990, 17502, 42127
   UDP: 3659, 14000-14016, 22990-23006, 25200-25300
   
   PS3 users enable the following online ports on your connection:
   TCP: 80, 443, 9988, 10000-10100, 17502, 42127
   UDP: 3659, 14000-14016
   
   Xbox 360 users enable the following online ports on your connection:
   TCP: 53, 88, 3074
   UDP: 53, 88, 3074
   
   

Battlefield 4 Fixes

Battlefield 4 “An Error was Reported by EA Online” Fix
This error is result of having multiple IDs on the same account.

• Click on the Profile button in the top right corner of Battlelog and select Change Soldier.
• From here you should see a list of soldiers associated with that account, one of which will be Active and highlighted in green
• Click on the Active button next to one of the alternate soldiers to set it as primary

Battlefield 4 Improved Performance
Create file user.cfg in BF4 root folder and add the following commands:

GameTime.MaxVariableFps 60
PerfOverlay.DrawFps 1
PostProcess.DynamicAOEnable 0
RenderDevice.Dx11Enable 0
RenderDevice.ForceRenderAheadLimit 1
RenderDevice.TripleBufferingEnable 0
WorldRender.DxDeferredCsPathEnable 0
WorldRender.FxaaEnable 0
WorldRender.MotionBlurEnable 0
WorldRender.SpotLightShadowmapEnable 0
WorldRender.SpotLightShadowmapResolution 256
WorldRender.TransparencyShadowmapsEnable 0