Can’t open Hearthstone. It displays that message.
same here "Global Splash Closed Sign Title’’ / "GLOBAL ERROR NETWORK UNAVAILABLE UPGRADE’’
The game has not started since yesterday 
Edited: Resolved after Scanning and repairing from Options
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so,what did you do my friend?i have the same message 3 days now.can you tell us pls?
/e… true. did that and fixed it.thanks.
thanks for tip, it worked for me too
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