I have two different WOW accounts. No problem with my main account, but on this account, since yesterday I keep getting this error message and can’t log in - even with the authenticator code. I can log into my Blizzard account - no problem. Am paid up.
Yesterday - after 50 or so tries, I got on. Today - am not able to.
Outdated Graphics drivers – The corrupted or outdated GPU driver can also cause wow51900314 error. So, to fix the error update the drivers from the Device Manager. Server Issues – Most possibly you may see the error message when the game loses its connection with the WoW servers.
Also check your addons ,I found if you update them they have less chance of getting that message. Something to do with memory,( i need to up grade soon)
i’ve had to use the battlenet launcher in order to play without entering an authentication code: i posted my issue at this topic in the Technical Support forum: