Blizzard is asking Diablo III gamers affected by the recent lag to provide trace route information.
Blizzard Investigating Nasty Diablo III Lag Issue : Read more
Blizzard Investigating Nasty Diablo III Lag Issue : Read more
Anyone with common sense knows that their reason for online only is for the money. An offline mode could have been added easily and made so that offline characters and items couldn't be used in online mode as to not affect balance.