Remote Login connection troubles and authentication issues

I have been trying to setup a machine headless using remote login, but it’s not quite working and I can’t understand what’s the issue. I cannot connect using the credentials I set in Remote Login settings, but I can connect through a different account and login to my user account. However I get lots of nuisance authorization prompts for my password and now there’s an extra user account on the machine I don’t want. Further, I can no longer access Remote Login settings, they are locked and cannot be unlocked.

Machine H is the headless remote machine. It is running GNOME 49 on (Fedora 43). There is one user account, . I turned on Remote Login, created a user and password. When I connect from the local computer using Remmina, the connection is refused.

Then I tried the (excellent) instructions here: How to use Gnome Remote Desktop for headless login | BCarpent.codes . In these instructions, the credentials are set via CLI.

When it comes to creating a new user, I initially set credentials for . Connection is refused.

I then tried again, creating a new user account and RDP user credential for “rdp-user”. Now I can connect successfully and see the lock screen. However, now there are two accounts I can log into: , and “rdp-user”. If I log in to , I am asked for my password multiple times (1-3 times, depending). Additionally, I’m locked out of Remote Login settings as I mentioned. I also don’t want to see rdp-user, this is not a user account I want on my computer, if possible.

And yet, if I set the RDP credentials for and connect using that account, the connection is refused again. (Specifically, Remmina asks for a username and password, which is provided, buy not accepted, with no error).

What’s going on? I just want to make an RDP connection using and login to the remote machine as without all the nuisance password prompts.

Any insight is appreciated!