You have bin disconnected. (WOW51900328)

[Sebaceouss-sulfuras]

When exactly were you having this issue, just now?

Is there any chance it is related to this?

Sept 8th-12th 2019 - WoW connection issues / WOW51900328

Hello all, We are currently monitoring a DDOS attack against network providers which is affecting latency/connections to our games. If you are stuck connecting or getting disconnected from WoW, please wait a bit and try again later. Our network team is working hard to resolve this.