My Robot appears as "Disconnected"

So I was able to remove the ROBOT which was showing as DISCONNECTED and then I logged out from both, ORCHESTRATOR and ASSISTANT.
I even rebooted my server.
Now I have that robot but it is ATTENDED and I cannot find when I try to run a job.

How can I make a robot UNATTENDED from ATTENDED?

Hi, Have you assigned the robot to any environment or not?

Now I have no ROBOT as I removed what I had and would like to add an UNATTENDED robot.
Could you help me?

Sorry for late response. Here is instruction and video on how to connect unattended robots for modern folders: