Classic Anniversary Edition. Server: Dreamscythe. Character Xeirria Human Warlock. Elwynn Forest. (WOW Error 51900319).
Let me get this straight. I have performed every troubleshooting procedure I have at my disposal, including shut downs & restarts. Also software & hardware updates. Even testing ISP connection. Nothing is wrong on my end.
However, all of a sudden out of nowhere, the launcher keeps disconnecting me from the game & also from Blizzard.
As I have found no issue on my end the problem is on your side. This needs to be fixed immediately.