PunkBuster

[GUMlN]

Game disconnected: you were kicked by PunkBuster. Stated reason: PunkBuster kicked player 'UberMajesticPony' (for 0 minutes) ... RESTRICTION: Service Communication Failure: PnkBstrA.exe

[EA_Dennis]

Please run the file pbsvc.exe from your Battlefield 4 folder and re-install the Punkbuster Services. This should fix the communication failure error message.