You have been disconnected. (WOW51900123) (WOW51900118) in Classic Hardcore

You have been disconnected. (WOW51900123)
You have been disconnected. (WOW51900118)

I got these two errors while trying to log into Classic Hardcore today.
This is more of a PSA how to fix post.

Here’s what worked for me:

  1. Restart Router
  2. Log out and log back in the Battlenet app (with new authentication)
  3. Scan and repair WoW Classic
  4. Restart PC

I was able to get it to work following these steps, hopefully it helps someone!

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