The steps above should set your NAT Type to open.
Luckily for you, we’ve got info on all of the most prevalent Black Ops 4 errors, as well as some advice on how to fix them. Since launch, there have been a few prominent issues cropping up in Call of Duty Black Ops 4, issues that can seriously hamper your experience if left unchecked. And while Black Ops 4 offers silky smooth gameplay, punctuated by great shooting and interesting new modes, things are less than perfect. With Black Ops 4 now officially out everywhere, players have been sinking their teeth into Treyarch’s latest iteration of the long-running shooter series.
In order to play Call of Duty: Black Ops II on PC you need to set up a static IP address for your PC as well as forward a range of ports to it. Port Forward Call of Duty: Black Ops II on Personal Computer
To begin playing Call of Duty: Black Ops II on Playstation 3 you need to do two things: set up a static IP address for your PS3 as well as forward the basic PS3 ports. Port Forward Call of Duty: Black Ops II on Playstation 3