required update installation issue

Posts: 10
Hi, I'm having problems launching Hearthstone. I hadn't been on my computer for a couple weeks, and when I got back on and tried to launch the game, the following screen popped up: http://puu.sh/aGvTH/95dd006c97.jpg

So I followed the "more help" link at the bottom, and it said:

Failed to download a required update. Please check your internet connection and try again.
Errors: BLZBNTBTS00000046, BLZBNTBTS00000048, BLZBNTBTS0000004A, BLZBNTBTS0000004F, BLZBNTBTS00006, BLZBNTBTS00000052

My Internet connection is, of course, fine. I'm not sure what else to do at this point. I tried uninstalling and reinstalling my battle.net client with no luck. When I am able to launch my battle.net client itself, which is rare, it asks me to reinstall both Hearthstone and D3, both of which I have installed already, and it won't let me go online on battle.net. I've gone over the other potential fixes, including disabling my security programs, running a virus scan, and closing background applications, and none of these things resolved my issue. Not sure what else to do anymore.

Thanks in advance for any help.
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Posts: 3
I'm also having the same problem. I'm currently on vacation in China but Hearthstone is available in China, but I can't update :( same thing with my Starcraft II
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Posts: 10
bumping this, still haven't found a solution on my own
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Posts: 1
I HAD the same problem recently when I was trying to intall Hearthstone. It kept saying "Failed to download a required update".
Technical support here: https://us.battle.net/support/en/article/failed-to-download-a-required-update was no good for me, because I tried everything. I have wired connection to a switch which is connected to a router, so that's a common setup I guess.

The problem was in the router, because we have a proxy server running on that router, so the solution was to exclude my computer from the proxy, so the communication goes directly. I don't know why proxy causes the problem, but I would suggest adding it to the technical support page I mentioned above.

Hope that helps
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