Тише пробвай това

Че съм на работа и чак довечера мога да пробвам
Which OS are you on? If you're on Windows 7, please try the following:
Press Windows Key + R
Type inetcpl.cpl into the Run Window
Click Okay
Click the Connections tab
Select Never dial a connection, if you have the option
Click LAN settings
Uncheck Use a proxy server for your LAN
If "Use a proxy server for your LAN" is already unchecked, try to select Automatically detect settings. (IE - If it is checked, uncheck it. If it is not checked, check it.)
Save changes, exit and try the app again
If you're not on Windows 7, or the steps above do not help please try reinstalling the app:
Open Control Panel.
Click Uninstall a program.
Right-click on
Battle.net/Blizzard App and select Uninstall. This will begin the uninstallation process.
If the client is not listed, manually uninstall the Blizzard App:
Click Start ( Windows Key + Q in Windows

, and select All Programs.
After locating the Blizzard App, right-click the file and select Open File Location.
Move one folder up and delete the
Battle.net folder.
Next let's delete the saved files for the app:
First go into Start > Search and type in %LOCALAPPDATA% and look for
Battle.net, Blizzard and/or Blizzard Entertainment folders. If you don't have all 3, that's okay just delete the ones you do have.
Next same thing only this time type in %APPDATA% look for those same 3 folders and delete the ones you do have.
Next same thing only this time type in %TEMP% look for those same 3 folders and delete the ones you do have.
Last type in search %PROGRAMDATA% look for those same 3 folders and delete the ones you do have.
Finally go ahead and reinstall the app HERE.