This error means Battle.net Agent (the process that installs and patches our games) couldn't stream necessary files.

Information for troubleshooting Call of Duty: Vanguard launch issues

Game crashes or doesn't load after pressing "Play" in the Battle.net app or crashes mid-game

Troubleshooting your security programs can resolve issues preventing you from installing or using Blizzard software.

Something went wrong while trying to download a file. Please try again.

Information on Battle.net Regions

Troubleshooting "You were disconnected from Battle.net" when logging into Diablo II (2000)

Information on error BLZBNTBNA00000008

Something went wrong while trying to launch the game. Please make sure it's installed and updated, then try again.

How to troubleshoot "Checking Versions" in Diablo II (2000)