Blizzard error codes

28 codes — tap one for its meaning, causes, and fix steps.

• BC-101Overwatch on console failed to connect to the game server (broken connection error, console-specific).
• BC-153Overwatch/Overwatch 2 cannot connect, often on console — most visible during server maintenance.
• BLZ51903003The game client lost its connection to Blizzard servers with an "An error has occurred. Please try again later" message.
• BLZ51903021WoW displays "An Error has Occurred. Please Try Again Later" and the client cannot log in.
• BLZ51914003The WoW game client was immediately disconnected after attempting to connect to a realm.
• BLZ51934200World of Warcraft shows "There are currently no servers available" — common on patch days.
• BLZBNTAGT00000840Something went wrong with a game file and the update cannot proceed.
• BLZBNTAGT0000084BThe Battle.net Update Agent could not modify the necessary game files on disk.
• BLZBNTAGT000008A4The Battle.net desktop app is unable to download a file required for installation or patching.
• BLZBNTAGT000008FCThere is a conflict with one or more programs or services on the system.
• BLZBNTAGT00000960The Battle.net launcher failed to save or apply update files during patching.
• BLZBNTAGT00000BB8The Battle.net Update Agent failed to download or write new update data.
• BLZBNTAGT00000BCEA game patch failed because the downloaded patch data is corrupt or invalid.
• BLZBNTAGT00001389The Battle.net desktop app cannot download a file needed to install or update a game.
• BLZBNTBGS00000033The Battle.net account does not have a Call of Duty license linked to it.
• BLZBNTBGS000003E9A network error prevented the game from connecting to the Blizzard game server.
• BLZBNTBGS000003F8Connection to the Blizzard game server has been lost, most commonly seen in Call of Duty titles.
• BLZBNTBGS8000001CThe Battle.net launcher cannot display content due to a browser component error or service issue.
• BLZBNTBNA00000005The Battle.net desktop app lost communication with the Battle.net Update Agent.
• BLZBNTBNA000003E8The Battle.net desktop app cannot display content due to a connection or server problem.
• BLZBNTBNA00000A8DThe Battle.net app could not complete the login process.
• BLZBNTBTS00001Something is interfering with the Battle.net game launcher.
• BLZBNTGFT00000001You are attempting to claim a game gift that your Battle.net account does not own.
• BLZBNTTAS00000001Authentication could not be completed — usually accompanied by 'We can't authenticate you right now'.
• LC-202Overwatch lost connection to the game server (console error).
• WOW51900118World of Warcraft disconnected the player — commonly triggered by scheduled server maintenance.
• WOW51900127World of Warcraft cannot complete login or has disconnected the player.
• WOW51900319World of Warcraft disconnected the player with a 'You have been disconnected from the server' message.