
You need to enable a remote connection or edit firewall settings on your Windows 10.

There are five solutions to fix Microsoft Remote Desktop error code 0x204. You can uninstall the app and reinstall the latest version and see if that helps in resolving the issue Conclusion Please check if you are using the latest version of the Microsoft Remote Desktop app. Note: It's worthy to mention that error code 0x204 may also appear on the iPad. Select the network types you want to use, name the rule, and hit Finish.

Click Specific local ports and enter port number 3389. Click on Inbound Rules and then New Rule. On Windows 10, search Windows Firewall in the search box and then choose “ Windows Firewall with advanced security”. on the Mac, go to Network Utility, select Port Scan, and then Only test ports between 33. Right-click the folder named and then choose Move to Trash. Click the Finder icon, type “ group containers” in the search bar, and press Enter. Delete Remote Desktop temporary files on Mac On the Mac, enter the IP Address of Windows 10 instead of the PC Name in the box to achieve a remote connection. Type in “ ipconfig” and press Enter, the IPv4 address is the one you need. On Windows 10, open the Run box, type in “ cmd” and press Enter to open Command Prompt. Connect to Windows with IP Address on Mac Select Remote Desktop and Remote Desktop (WebSocket), then hit OK. Click Allow an App or Feature Through Windows Defender Firewall. Navigate here: Control Panel > System and Security > Windows Defender Firewall. On Windows 10, open the Run box, type in “ control panel” to open Control Panel. Allow Remote Desktop through Windows Firewall on Windows Go to the Remote tab, and check Allow remote connection to this computer. On Windows 10, press Win + R, then type “ sysdm.cpl” in the entry bar and press Enter to open System Properties. Here we listed five ways to fix Microsoft Remote Desktop error code 0x204 on Windows 10 and Mac when using RDP to control another computer remotely.
