Hello,
I just decided to give Wow a try again and purchased the bundle for the war within. I installed battle.net and tried to install Wow and get error BLZBNTAGT000008A4. I have done some searching and tried all troubleshooting steps, and continue to have an issue.
A couple of things to note. It seems like some users get this error and are still able to download, but very slowly. My issue pops up the message We’re having a problem transferring data. Please check your internet connection just in case and try again. I have not been able to get past the error. It instantly pops up that message and will not continue. The only thing that seems to progress is when I choose the install, it pops up the message, then says update. When I click the update it pops up the same message, and have tried several times to continue with no success.
One other thing to note. I can install other games within Battle.net without issue. It seems my issue is isolated to WoW, and more specifically the war within. I can install the classic without issue . I have also tried both beta and standard versions of Battle.net.