J’ai tout désinstallé, battle.net, warzone et le problème persiste… c’est du n’importe quoi . De pire en pire…
11 Likes
Same here. Nothing helps. Scan and repair x10. Nothing. Sometimes I can start the game with modernwarfare.exe but 8 out of 10 disconnection, connection failure, and something like that. That day when warzone going to be start for 5 day in a row and do not crash, or lag, I´ll open a champagne.
15 Likes
For 5x time start with “C:\Program Files (x86)\Call of Duty Modern Warfare\ModernWarfare.exe” finally started. 2 times want to start in safe mode, and I choose no. No I´m finally in. Until the next crash.
i am so done with this sht deinstal de game 3 times 10 scan repairs always same sht [Blzbntbna00000012] fout 2 hours ago play the game perfect 1 game perfect next one disconectd from server
2 Likes
same 
2 Likes
Same Here… Anyone has a clue about how to solve this??
Thanks.
Same to me.
Any solutions ?
Any help ?
For everybody, try to go to “C:\Program Files (x86)\Call of Duty Modern Warfare\ModernWarfare.exe” or where your game installed, and start with ModernWarfare.exe appr. 6x time I managed to log in to the game with that method.
5 Likes
Same here nothing helps , seems to be an bnet error
go to the program file and launch it from the .exe file instead of bnet launcher
2 Likes
Has anyone figured out how to resolve this problem? I have scanned and repaired many times and to no avail. This is pissing me off. I haven’t even played the game yet.
same i tried every thing
i found a vid on YouTube that said to rename the modern warfare file to modern warfare backup then restart the launcher and it will show that you need to install the game you just click the already installed button underneath the install button and it should work after that here’s the link for the video i watched just incase yall need it FIX COD Warzone BLZBNTBNA00000012 Error Not Launching On PC - YouTube
Check the vid in my reply its what worked for me
ive deleted re intsalled every game i had and nothing still cant even open the game
Got a fix from another thread:
(CoD - BLZBNTBNA00000012/BLZBNTAGT00000960/BLZBNTBGS7FFFF01 - #1239 by Bebbzie-2329)
I was having this issue. I had uninstalled/reinstalled Warzone and Battle.Net and neither fixed the problem… Frustrating!!
I tried many different things to try and solve it and eventually I had the thought to make “C:\Program Files (x86)\Battle.net\Battle.net Launcher.exe”, “C:\Program Files (x86)\Battle.net\Battle.net.exe” and “C:\Program Files (x86)\Call of Duty Modern Warfare\ModernWarfare.exe” run as administrator by default. This seemed to fix the problem from me and I can now launch Warzone Pacific from within the Battle.Net launcher".
To do (on Windows 10) this just right click on the executables, open properties, got to the Compatibility tab and check “Run this program as an administrator” then Apply.
I think it may only be the Launcher.exe that was necessary to make it work but it could be some combination of the 3 I mentioned and it can’t hurt to do them all.
Not sure if the problem was introduced with the Caldera update, a Battle.Net update or a Windows update but there would appear to be some silent UAC blocks happening in windows between Battle.Net launcher and Warzone.
1 Like
This error due to ‘run as admin’ permissions is almost as likely as me leaving any honey mustard dipping sauces when I order chicken fingers.
The core of the issue is a network one. It’s a concurrent handshake between Battle.net services and whomever manages the Warzone services. When we have identical inbound firewall rules over the same ports for both battle.net and call of duty executables while they’re ‘chatting’, rainbows and checking your latest loadout attachments happen.
I’m actually chalking this one up as a Blizzard support Blunder, not a COD one.
Hey i have same problem but the way I get it to work is I open the Modern warfare APP RUN as Adminitrator by right clicking it and I open and close it like 5 times until it lets it go through. ALSO DELETIING THE FILE THEN DOWNLAODING IT AGAIN WAS A HUGE HELP+
That shouldn’t be an acceptable way to ‘get it to work’.
How many times are you willing to go through 4 failed attempts opening the game before you’re going to dig deeper?
Laziness IMO.
Seriously try the Firewall fix above.
I turned off Windows UAC (User Account Control Settings).
I set mine to “Never Notify” and now the game launches just fine for me.