A communication error occured, please restart.

Technical Support
Hello everybody, yesterday i bought and started to download a digial copy of Diablo 3. after the download i get this message every time i try to run the installer "a communication error occured, please restart. If problems persist contact customer support"
Same thing keeps happening to me, only exception is that I have a Disc copy.
I have searched around and there doesn't seem to be a solid answer, either from Blizzard or anybody else.
Same with me...
So nobody has an answer? I really want to play Diablo 3
I have the same problem . Help please !
Hello,

Can you try removing the following folder:

[WINDOWS XP]

C:\Documents and Settings\All Users\Application Data\Battle.net

[WINDOWS VISTA/7]

C:\ProgramData\Battle.net

Once here, right click on the Agent folder and select Rename. You can then rename the folder to Agent.Temp to ensure that it is not recognised by the game the next time it launches.

( Application data is a secret file ) In total commander = Settings = u must enable the hidden folders , secret files !

I HOPE I HELPED TO ALL BROS !!!!!!!!
yo this helped! , thx dude <3

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