I approved your request, but you seem not to be online.
it kicked me off just coming back now
didnt like my password 
We’re aware of an issue where the error BLZBNTAGT0000138F happens when trying to install WoW classic. This is already being investigated by our developers.
As a workaround, it can help to open the Mac Privacy settings and in here the App Permissions. In the App Permissions allow both the Agent and the Battle.net App full access.
If this doesn’t help, we can only ask for your patience, while this is being investigated.
I do apologize for this error being caused.
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No, this approach doesn’t seem to work. Furthermore, there appear to be two different Agent apps, which is quite confusing. The issue isn’t related to permissions because if you have the files from the indices folder, Battle.net operates without any problems, and there’s no need to tweak the Agent.app or mess around with permission settings.
It really does seem to be a matter of luck as to how the Agent.app behaves. If it freezes within the right timeframe, the download and installation process goes smoothly. However, it’s almost like playing roulette. But I’m sure people here didn’t download battle.net to play casino.
I genuinely don’t understand why downloading game files has to be this complicated. The issue could be easily resolved if the Battle.net installer simply downloaded the indices files first as a workaround.
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M1 Air - same.
The client spawns agents if pushing update/install button until peaking CPU at 100%.
That is a bug, not a bad installation.
Is there a way to get logs from Batte net?
May help here resolve this issue quicker!
Edit: none of the proposed solutions work - agents spawn quicker at 100% cpu than anything happens in battle net. Just throwing the error.
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It works, when you get indices game files. It worked for everyone. But I can only give you the download link on Discord.
Hi i’ve added you on discord. I would like to try you solution and see if that fixes the issue.
Sadly still no reply from Blizzard on this matter it seems.
Since MacOS Ventura you don’t have an option to give “full access”. I tried to go 1 by 1 and Agent only appears under “Full Disk Access” and Battle.net app does not even appear at all.
You can over the + symbol add another app to give it full permission. But as I already wrote, it will not help you.
It is not a permission issue, there is a significant bug with the Agent.app.
Agent.app is tasked with monitoring game installations and assists the downloader in correctly installing the games.
When certain game files, such as the indices, are already installed, the Agent behaves normally. However, when attempting a fresh installation, the Agent enters an installation loop (after ~80MB), which triggers it to launch multiple instances of Agent until the CPU is at full capacity.
You can try to terminate the Agent app in the right timeframe and the installation will run normally, but you have to be very lucky.
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I did it!
I got a new Mac M1 Max. I could see that there was a ton of Agent applications launching when clicking update. However if you close(force quit) all Agents and and Battle.net application from the Activity Monitor. Then you open up Battle.net and WoW will instantly try and update(but it will not work yet), if you then go into ActivityMonitor you will see 2 Agents, and 2 Battle.net Helper. First I deleted both Agents, then I deleted one of the Battle.net Helper. Then it started to update and download. I hope this works for you guys as well. <3
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Add you on discord my nikname Vnyk
Thank you, really working solution
Not working for me, either. Any updates?
I’m having the same issue, M1 pro
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I’m having the same issues on my Macbook Pro 14 M1 Pro using Mac OS 13.4.1. I tried to install the WOW Classic ERA PTR client. A bunch of Agent processes spawn at 100% CPU to a degree that the system is barely responsive any more. Then the installation cancels with error BLZBNTAGT0000138F but the Agents are still running and consuming CPU until force killed by the user.
Please let me know if you need any more information to reproduce the issue. Looking forward for a fix so I can test the WOW Classic Hardcore client on my Mac.
2 Likes
Thanks! This worked for me!
Right click the “Data” folder in WOW root folder and then click the padlock under “Sharing & Permissions” (even if everything is already set to “Read & Write”).
Then click the “…”-button and choose “Apply to enclosed items”.
Now I finally got only 1 Agent.app running and it seems to be downloading fine at 30MB/s. (only got 2-3MB/s when it had 10 Agent.app running) 
3 Likes
I also have the same problem on mb pro - M1 Max. I tried everything out to fix it by myself. But nothing worked out for me. I really want to try dragon flight out. Fortunately I waited with buying the game :-/
This works for me as well. After changing permissions of data folder as described by Lukeperry, there’s only one Agent process at 100% CPU instead of 4, and download rate is also back at maximum again.
Thank you so much for the detailed explanation! 
Happy to confirm that doing the steps described by Lukeperry and Штейнмастер are actually making the setup work!
I had to add my own user to the permissions section of the “World Of Warcraft” Folder, only having “everyone” and “admins” in it wasn’t enough. After adding myself, clicking “…” and applying this to all subfolders made battlenet work again.
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Nice that it is working for you 
I have still the same issue, unfortunately :-/
1 Like