Solved: How do I fix WOW51900319 “You have been disconnected from the server” Error?

Problem: World Of Warcraft players reporting that the game is disconnecting them from servers due to errors WOW51900319. This error shows up out of sudden and the player is kicked out of the multiplayer match.

The detail error message as below:

You have been disconnected from the server. (WOW51900319)

Follow below solution steps to resolve WOW51900319 error.

Content Summary

Solution 1: Check @BlizzardCS Twitter and Realm Status
Solution 2: Standard troubleshooting steps
Solution 3: Reset UI
Solution 4: Set Max Background FPS to 30
Solution 5: Lower Max Foreground FPS
Solution 6: Enable Optimize Network for Speed
Solution 7: Log Out Battle.net account
Solution 8: Contact Battle.net Support
Reference

Solution 1: Check @BlizzardCS Twitter and Realm Status

WOW51900319 error mostly when the game loses connection with the World of Warcraft servers. Before trying any of the following steps check the @BlizzardCS Twitter account and Realm Status page for the current server status. Or visit Battle.net Technical Support Forums to check whether similar problem reported.

Solution 2: Standard troubleshooting steps

• Reset your network devices to make sure your router hasn’t become flooded with data.
• Release and renew your IP and flush your DNS to resolve any network conflicts.
• Update your drivers and operating system to resolve any compatibility issues.
• If you’re using a wireless connection, optimize your internet connection to rule out a connection issue or use the ethernet cable to connect to the network.
• Close all other applications to resolve software conflicts and free up resources.
• Check your network configuration to find any issues with your firewall, router, or port settings.
• If you’re using a VPN, try removing it.
• Disable any proxies that may interfere with the login module.
• Run a security scan to remove any viruses or malware infections.
• Update or temporarily uninstall any security programs, which may mistakenly identify the login module as a security threat.
• Old firmware on your modem and router can cause issues with complex game connections. Visit the manufacturer’s website for instructions on how to apply firmware updates.

Solution 3: Reset UI

Step 1: Open in-game chat box, enter below command and press enter: /console cvar_default

Step 2: Exit World Of Warcraft.

Step 3: Temporarily uninstall any addon management software.

Step 4: Open Blizzard Battle.net desktop application.

Step 5: Click Options > Show in Explorer (Windows) or Reveal in Finder (Mac).

Step 6: Open the World of Warcraft folder.

Step 7: Open the folder for the game version you’re troubleshooting (_retail_ or _classic_)

Step 8: Rename the Cache, Interface, and WTF folders to CacheOld, InterfaceOld, and WTFOld.

Step 9: Re-launch World of Warcraft so the changes can take effect.

Solution 4: Set Max Background FPS to 30

Step 1: Launch the World Of Warcraft.

Step 2: Open Game Menu > System > Advanced.

Step 3: Check Max Background FPS option and drag the slider to 30 FPS.

Step 4: Click on the Apply button to save the change and Okay button to close the Game Menu.

Solution 5: Lower Max Foreground FPS

Step 1: Launch the World Of Warcraft.

Step 2: Open Game Menu > System > Advanced.

Step 3: Check Max Foreground FPS option and drag the slider to lower the foreground FPS from the current value.

Step 4: Click on the Apply button to save the change and Okay button to close the Game Menu.

Solution 6: Enable Optimize Network for Speed

Step 1: Launch the World Of Warcraft.

Step 2: Open Game Menu > System > Network.

Step 3: Check the Optimize Network for Speed option.

Step 4: Click on the Apply button to save the change and Okay button to close the Game Menu.

Solution 7: Log Out Battle.net account

Log out from the Battle.net account and then re-login again so that the server to keep up to the network request.

Solution 8: Contact Battle.net Support

Reference

Blizzard US Support > WoW Character Stuck – Unable to Move
Blizzard US Support > World of Warcraft Disconnection Problems
Blizzard US Support > WOW51900319
Blizzard US Support > Resetting the WoW User Interface