Streaming is the method we use to install and update our games. It allows you to play before the installation or patch is completely finished. If you choose to play before the game is completely installed or patched, the stream will continue to download missing data while you play.
This error means Battle.net Agent (the process that installs and patches our games) couldn't stream necessary files. Follow the steps below to resolve this issue.
If the issue persists, please allow Battle.net Agent to completely finish the download before you click Play.
Tried everything here?
Article ID: 6645