All realms red / WOW51900319

Hey,

since some days I can’t connect to cataclysm classic servers anymore. When I start the game all realms in every region are displayed as offline (red text). After selecting any realm I return to the starting screen with deathwing in the background and the button “reconnect”. After clicking that I need to select any realm once more. But this time I get the error “you have been disconnected from the server (WOW51900319)”

The error persitates since some days till this point I:

  • restartet the computer
  • restartet the router
  • tried another DNS server
  • enabled / disabled IPV6
  • reinstalled the game
  • disabled my firewall
  • run the “check for updates” + “scan and repair” option (multiple times)
  • deleted the wtf/addons/Interface/… directory

The most surprising fact is that I can play vanilla and retail without any problems.

Any idea what I can still could try?