Until now I can’t login to WoW: Forever Beta after recent patch/maintenance. I’m always getting WOW 51900328 Error for 3 days now. 
Devs working on beta won’t see your feedback in this forum. Post in In Development > WoW: Forever Beta Discussion
Can’t post a topic there as the Category is marked "read-only
Unfortunately it would be if you currently have no game time, a forum requirement for most except some of the support categories. You should still be able to review them for oustanding issues, and make sure to use the issue reporter also. I believe I saw that on the character list too.
The recommended steps for retail, may not work for beta, but also worth a shot.
Error: WOW51900328
definitely still have game time as i just purchased my Skyborne Epic Pack last Septemebr 29
Game time for that does not kick in until the game releases, on 11/4/2026. But if you do have game time otherwise, try logging out and back in to refresh your post permissions cookie.
I have game time as I was able to play until the recent server shutdown for updates & maintenance last October 9. after that it just keeps disconnecting after the “Logging in to game server” prompt.
I was having the same issue after the recent patch. I ran the “Scan and Repair” from the options cog next to the play button and it fixed the issue for me.
Tried it already. Even reinstalled the game. still can’t connect.