World of Warcraft Error Code WOW51900118: How to Fix It

Easy 10-30 minutes Medium Severity Verified June 2026
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Error Code
WOW51900118
Brand
World of Warcraft
Product Type
game
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
10-30 minutes
Error code WOW51900118 in World of Warcraft means your account has been temporarily locked, usually triggered by suspicious login activity, too many failed login attempts, or a security flag raised by Blizzard's systems. This is a medium-severity issue that prevents you from logging into the game until the lock is lifted or resolved. The good news is that in most cases you can unlock your account yourself through Blizzard's account management tools without needing to contact support.
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Tools You'll Need

How to Fix Error Code WOW51900118

  1. Check Your Email for a Blizzard Security Alert

    Only click links from official Blizzard email addresses. If you are unsure, go directly to account.battle.net instead of clicking any email link.

  2. Log In to Your Blizzard Account Management Page

  3. Reset Your Password If You Suspect Unauthorized Access

    If you believe your account was compromised, do not log back into the game until you have fully secured your account and changed your password.

  4. Set Up or Re-link the Blizzard Authenticator

  5. Clear the Battle.net App Cache

    Do not delete any folders outside of the Cache directory, as this could affect your game installations.

  6. Disable VPN or Proxy Services

  7. Wait Out the Temporary Lock Period

  8. Contact Blizzard Customer Support

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When to Call a Professional

Contact Blizzard Customer Support directly if your account email address has been changed without your permission, if you cannot receive verification codes, if your account shows unauthorized purchases or character changes, or if the lock persists after completing all the steps above. These situations may indicate a full account compromise that requires Blizzard's account recovery team to handle manually. You can reach them at us.battle.net/support.

Frequently Asked Questions

Why did I get error WOW51900118 out of nowhere?
Error WOW51900118 is triggered automatically by Blizzard's security system when it detects unusual activity on your account. Common causes include logging in from a new location or device, using a VPN, too many failed password attempts, or a potential unauthorized login attempt by someone else. It is a protective measure and does not necessarily mean your account was hacked.
How long does the WOW51900118 account lock last?
If the lock was caused by too many failed login attempts, it typically lifts automatically after 15 to 30 minutes. If it was caused by a security flag or suspicious activity, the lock remains until you verify your identity through the email verification or authenticator process. In rare cases involving account compromise, Blizzard support may need to manually lift the restriction.
Will I lose my World of Warcraft characters or progress because of this error?
No. Error WOW51900118 only locks you out of logging in — it does not affect your characters, items, progress, or subscription. Once the lock is resolved and you can log back in, everything will be exactly as you left it.
Can a VPN cause the WOW51900118 error?
Yes. Using a VPN or proxy service is one of the most common triggers for this error because your login appears to originate from an unusual or flagged IP address, which Blizzard's security system interprets as a potential unauthorized access attempt. Disabling your VPN before logging in will typically resolve the issue.
How can I prevent WOW51900118 from happening again in the future?
The best prevention is to enable the Blizzard Authenticator app on your account, which significantly reduces the chance of automatic security locks and makes it much easier to verify your identity if a lock does occur. Additionally, avoid using VPNs while playing, use a strong and unique password for your Battle.net account, and make sure your recovery email address is current and accessible.

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