PLEASE HELP! Crysis 3 Problem

Hello everyone I have a really annoying problem when i try to crysis 3 multiplayer.  I have not played in 1-2 months and wanted to get in a game.  I look in the server browser and no servers are there (I have refreshed it many times, logged in everyday for a month but there r still no servers).  Also when i go to my recent servers i played on, it says they all have 999 ping.  So i really want to play crysis 3, but can't.  Maybe can someone help me, do i have to update it or something, if so how??

Disable your firewall

how do i do tht?