Highlight Windows Defenderand click Open Windows Defender Security Center.

Click Firewall & network protectionand click Allow an app through firewall.

Choose Remote Desktop and click OKbutton to save changes.

If you have installed any third-party antivirus software, you should shut down it temporarily. Port 3389 is used for remote desktop connection. Here are steps on enabling the port 3389: If this port is disabled, the error 0x204 may also occur.

In the Run box, type ' cmd' and hit Enter to open Command Prompt.

You will get the IP address of the system.

Log into the router and find out the Port Forwarding In that section, forward TCP port 3389 to the earlier located IP address.

Uninstall Newly Installed Software or Hardware If the above 3 ways can't help you solve the problem, you should check whether you have installed new drivers, programs, or hardware. If so, you may need to roll back to the previous drivers, uninstall software, or disassemble the hardware. If those methods also don't work, you can try uninstalling and reinstalling the Remote Desktop app.Error code 0x204 might be caused by serveral different reasons. So, you can try below methods to see if they help. Make sure you have checked 'Allow remote connections to this computer', and uncheck 'Allow connections only from computers running Remote Desktop with On the remote windows PC, open 'Run' and input 'SystemPropertiesRemote.exe' to open up the System Properties screen. Network Level Authentication' if your MAC pc is on the different network from the windows pc.Īllow Remote Deskstop through Windows Firewall.

From both sides, you must ensure the firewall allows the remote desktop connection. There should be no problem from the widnows side, you should check from the MAC side.Įnsure 3389 port is open from both sides. On your case, you should pay more attention to mac side. (Network Utility > Port Scan > Only test ports betwee 3389 andģ389). If all above methods do not help, remove the temp folder of Remote Dekstop for mac (close the remote desktop app > Finder > search 'group containers' > delete Or maybe you need to also assure the router is configured to forward the remote desktop port 3389. Microsoft remote desktop 10 mac error code 0x204 for mac#

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