Server 2019 suddenly rejecting credentials.

[MeepLikesToBuildPc's]

So, this has happened twice now. and I am SO confused. I have the following home server set up:

 

-i7 3770

-Intel Desktop Board of some sort 

-12GB DDR3

-128GB SSD

-2x 1TB WD Blue

 

I've got Windows Server 2019 installed on it and it works fine. It functions as my Ubiquiti Control Server, a NAS, Print server and Minecraft server.

 

It's in my closet without a monitor attached to it, only ethernet and power. I have it configured so I can access it from RDP on my MacBook or iPad. Suddenly though, I can't login anymore. Password that worked fine before, is now rejected. I have tried restarting, trying caps/no caps, nothing. I have to completely reinstall Windows. Is it possible that someone has hijacked it? there's an inbound and outbound firewall exception on port 25565 (Minecraft)

 

 

[Suppersupport]

never used server so bear with the stupid questions please.

is it a subscription based service?

do you think you where hacked and they changed the password?

[Acedia]

Is this an activated version of server 2019?

What happens when you hook up a monitor and keyboard and try to log in?