Hello, I wanna tell you my story of fixing this problem.
I had the same problem in Battlefield 3 (on Battlefiled 4 it works too) and i didnt know what to do. Then i went in Minecraft and i had the same problem - i couldnt connect to any server. Then i remembered that, i had the same problem with Minecraft year ago - it was CLOSED PORTS! Sometimes your internet provider CLOSES ALL PORTS. Then i called my provider and TOLD HIM TO OPEN ALL PORTS. That took 7-10 mins. After this everything working like before (i changed my internet provider - thats why i got this problem). Maybe you have the same problem as me, maybe you already got the solution.
