Information about this error when login to Diablo II

Need to update the phone number on your Battle.net Account?

Let us know if you run in to an accessibility problem.

Information on error BLZ51900002

Troubleshooting steps to resolve this error when installing the Diablo II expansion Lord of Destruction

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

This download isn't authorized by the Blizzard Tracker. Please contact Customer Support.

What to do if the website returns "Connection Error" when adding a phone number

The Battle.net desktop app is trying to connect to an invalid or nonexistent server.

The Battle.net desktop app is trying to connect to an invalid or nonexistent server.