Unable to use MacBook Windows app to RDP to Zorin 18

I have searched and unable to find a solution to using the Windows app on MacBook to RDP to Zorin 18. The weird thing is when I go to Settings, then Remote Desktop, and unlock the Remote Login choice it allows the slide switch to enable but within a few seconds disables again? Also I am unable to set the pott to 3389, it is just grayed-out. I have to be missing something. I hope it isn't too obvious

Hi and welcome.

I cheated, using Ubuntu 24.04 in search criteria as Zorin 18 is a fork of same.
Brave A.I. result from Brave search engine via Mojeek gives:

" To remotely desktop into Ubuntu 24.04 from a MacBook using the Windows App (Microsoft Remote Desktop), you must first enable native RDP on the Linux machine and then configure a specific setting in the Mac client to resolve certificate redirection errors.

1. Configure Ubuntu 24.04

  • Open Settings on the Ubuntu machine.
  • Navigate to System > Remote Desktop .
  • Toggle Remote Desktop to ON .
  • Select RDP as the protocol.
  • Under Login Details , set a username and password (or use existing credentials).
  • Note the IPv4 address of the Ubuntu machine (found in Network settings) for connection.

2. Configure the Windows App on macOS

  • Download and install the Windows App from the Mac App Store.
  • Open the app, go to Connections > Add PC , and enter the Ubuntu IP address.
  • Add credentials and save the connection.
  • Crucial Step: Right-click the new connection and select Export . Save the .rdp file.
  • Open the exported .rdp file in a text editor (like TextEdit).
  • Find the line use redirection server name:i:0 and change it to use redirection server name:i:1 .
  • Save the file and delete the original connection in the Windows App.
  • Go to Connections > Import from RDP file and select the modified .rdp file.
  • Launch the connection to establish the session.

Troubleshooting

  • Black Screen: Ensure you are logged out of the physical Ubuntu machine before connecting, as Linux typically allows only one graphical session per user.
  • Connection Refused: Verify that the firewall allows traffic on port 3389 (sudo ufw allow 3389 ).
  • Network: Ensure both devices are on the same local network, or use a tool like Tailscale for secure remote access over the internet.

AI-generated answer. Please verify critical facts."