How to Fix Remote Desktop Error Code 0x204 on Mac? What Does It?

Learn how to troubleshoot and How to Fix Remote Desktop Error Code 0x204 on Mac with our comprehensive guide. Discover the causes of the error and learn How to Fix Remote Desktop Error Code 0x204 on Mac here.

by A N Rahul | Updated Mar 17, 2023

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What does Remote Desktop Error Code 0x204 mean on Mac?

One of the main reasons for encountering the Microsoft Remote Desktop error code 0x204 on a Mac is the absence of the Remote Desktop feature on the PC you are trying to access. To fix this issue, users need to enable the Remote Desktop feature on the PC they want to connect to. This can be done by accessing the System Properties on the PC and checking if the "Allow Remote Assistance connections to this computer" option is enabled in the Remote tab. If the option is not enabled, users need to check it and save the changes before attempting to connect to the PC again. This should resolve the Remote Desktop error code 0x204 issue and allow users to establish a connection with the PC without any further problems.

How to Fix Remote Desktop Error Code 0x204 on Mac?

This guide provides easy techniques to stop error code 0x204 from popping up on Mac when you are trying to establish a Remote Desktop connection with a PC.

Enable Remote Desktop on your PC

  • Press the Windows key + R simultaneously to open the Run box.
  • Type in "SystemPropertiesRemote.exe" and press Enter.
  • Click on the Remote tab and make sure that the option "Allow Remote Assistance connections to this computer" is checked.
  •  Press the Apply button to implement the modifications and then shut the window.

Configure Windows Firewall to allow Remote Desktop connections

  • Launch the Run dialog on your PC by pressing the Windows+R key combination. Then, type firewall.cpl and press Enter.
  • Click on the option "Allow an app or feature through Windows Defender Firewall" in the Windows Defender Firewall screen sidebar.
  • Ensure that both the "Private" and "Public" boxes are checked next to "Remote Assistance", "Remote Desktop", and "Remote Desktop (WebSocket)" items in the "Allowed apps and features" column.
  • Click OK to save the changes and exit.

Generate a Windows Remote Assistance Invitation

  • To create a Windows Remote Assistance invitation, use the Windows+R key combination on your computer to open the Run box. Type in msra.exe in the command prompt and press Enter.
  • Once the Windows Remote Assistance screen appears, choose the option that says "Invite someone you trust to help you."
  • On the subsequent screen, select the option "Save this invitation as a file".
  • Provide the destination location to save the invitation, then select the "Save" option.
  • You can attempt to connect to the PC from your Mac using the invitation file you just saved along with the password.

Temporarily disable your antivirus protection

  • The setup of remote connections might be hindered, particularly if the third-party antivirus tool you are using on your Mac or Windows PC comes with a firewall functionality.
  • Hence, attempt to deactivate the protection modules of your antivirus software and verify if the error code 0x204 for Remote Desktop still persists.

Delete the temporary folder for Remote Desktop from your Mac

  • On your Mac computer, click the Finder icon in the Dock, type “group containers” in the search bar, and press Enter. Make sure that you choose the option "This Mac" instead of a particular folder in the search settings section.
  • Catch the container group folder in the search results and access it.
  • Locate the directory with the label UBF8T346G9.com.microsoft.rdc, perform a right-click on it, and opt for the "Move to Trash" alternative from the menu that appears.
  • After restarting your Mac, verify if the issue with Remote Desktop error code 0x204 has been resolved.

Cause of Remote Desktop Error Code 0x204 on Mac

  • When attempting to connect via Remote Desktop, some users may encounter an error code 0x204 on their Mac.
  • This error typically arises when the Remote Desktop feature is not enabled on the PC being accessed.
  • It's important to note that this issue is more common when connecting from a Mac to a PC, rather than from PC to PC.
  • When this error occurs, there are no troubleshooting options available, and the only option is to close the dialog box.
  • Firewalls and antivirus software can also cause this error by blocking remote connections, which is often their intended purpose.
  • To resolve this issue, you may need to make exclusions in your firewall settings or adjust your antivirus software's settings to allow remote connections.
  • Another possible cause of the error is redundant temporary data spawned by the RDP client. Deleting the associated folder from the Group Containers directory can often solve the problem.
  • It's important to note that identifying the root cause of this error may require some trial and error. The following guide can help you troubleshoot and resolve the issue.
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How to Fix Remote Desktop Error Code 0x204 on Mac - FAQs

1. What is error code 0x204 and when does it occur while establishing a Remote Desktop connection?

Error code 0x204 occurs while establishing a Remote Desktop connection between a Mac computer and a PC, and it indicates that the Mac computer is unable to connect to the remote PC.

2. What is Method 1, and how can it help in resolving error code 0x204?

Method 1 involves checking whether Remote Desktop is enabled on the PC computer that you are trying to connect to. This method can help in resolving error code 0x204 by ensuring that Remote Desktop is enabled and allowing remote assistance connections to the PC.

3. What is Method 2, and how can it help in resolving error code 0x204?

Method 2 involves configuring the Windows Firewall to allow Remote Desktop connections. This method can help in resolving error code 0x204 by making sure that the necessary apps and features are allowed through the Windows Defender Firewall.

4. What is Method 3, and how can it help in resolving error code 0x204?

Method 3 involves creating a Windows Remote Assistance invitation to connect to the PC from your Mac. This method can help in resolving error code 0x204 by generating a password and an invitation file that can be used to connect to the PC from the Mac.

5. What is Method 5, and how can it help in resolving error code 0x204?

Method 5 involves removing the Remote Desktop temp folder from your Mac. This method can help in resolving error code 0x204 by getting rid of any corrupt or conflicting files that may be causing the error.