Run Test-NetConnection [Server_Name] -Port 3389 from PowerShell to verify if the RDP port is reachable.
: Ensure mstsc.exe and port 3389 are allowed through the firewall on both the client and host machines. i remote desktop connection error code 0x904 install
: If you are on Windows 11 and still stuck, a known fix discussed on the Devolutions Forum is to connect using the server's IP address instead of its hostname, or to switch to the Microsoft Store version of the Remote Desktop app. i remote desktop connection error code 0x904 install
Identify the remote PC's IP address (run ipconfig on the remote machine). i remote desktop connection error code 0x904 install