World of Warcraft Classic or WOW Classic has launched surprisingly smooth, despite the massic influx of newbies.

The game servers of Blizzard Entertainments so far have been sailing smoothly. But, some error code is disrupting the gaming experience of the players.

wow 51900101
The game servers of Blizzard Entertainments so far have been sailing smoothly

The error with the code 51900101, or WOW 51900101 in the game is disconnecting many players. It halts the gaming client, thus ruining this excellent Classic experience. I know that this error may sound scary, but this glitch is relatively easy to fix.

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Fix WOW 51900101: The method

The most reliable and fastest way to solve this WOW error 51900101 is by removing the cache folder of your WOW game. By doing that you will reset the UI (user interface), the keybindings, and the addons. It should fix the error, resetting the game back to the default settings.

wow51900101
By deleting the cache folder you will reset the UI.

If you still want to keep your game settings, you would need to prepare a little bit before removing the cache folder. Just simply go to your game settings and take some screenshots to record your latest settings. With these, you could set everything in the same way before going for the fix.

Once you are all ready, go to the WOW folder, select "_classic_" then right-click on the folder "cache." Then, choose "delete," or you could move it to trash manually. The will automatically replace that cache folder with a new one; now WOW51900101 should be resolved.

Fix WOW 51900101: Alternative

If this way does not work for you, then the source of your error could come your IPS (internet service provider). Or it could be that your firewall is blocking the game access to the internet.

wow 51900101
It could be that your firewall is blocking the game access to the internet.

To overcome that, try fixing or troubleshooting the internet connection. Plus, disable the firewall temporarily. If all that still does not work, call for help from Blizzard.

>>> Read more: How To Play World Of Warcraft Classic On Your Mobile Phone