Information for troubleshooting Call of Duty: Vanguard launch issues

During technical troubleshooting, it is sometimes necessary to fully uninstall and reinstall the Battle.net desktop app.

There was a server-side issue downloading a required file.

How to resolve this issue when installing or updating a game

How to read and analyze WinMTR data in order to track down a potential connection issue.

How to read and analyze Pingplotter data in order to track down a potential connection issue.

Troubleshooting steps for memory issues.

Use the steps below to troubleshoot installation issues for Blizzard games.

Types of issues Blizzard Customer Support can help you with on Activision games

Restart the Battle.net desktop app to clear temporary issues that may cause this error.