McAfee Error 204 is a normal issue that users may find in their system. Some of the users who are trying to connect to a Windows computer system from an Android, Mac, or a different operating system have been getting the McAfee Error 204. Whenever we are trying to utilize the Remote Desktop protocol, this issue will appear. Although the Remote Desktop of a system is a robust tool that gives permissions to the users to connect to a system and get their access to apps, files, and network resources, a few times, things are not working as they should.
One of the general common problems that will trigger the McAfee Error 204, will be the instance in which the Remote Desktop Protocol is not activated on the Windows device. In this situation, you can solve the problem by activating it manually via the System Properties display and by giving permission to Network Level connections. However, McAfee Error 204 can also be caused by your firewall. In order to solve the problem, in this condition, you require to establish an exclusion rule. You just have to simply follow all the given methods and steps to solve the McAfee Error 204.
One of the most general reasons that will cause the McAfee Error 204 is when trying to access the files from the Windows operating system by utilizing the Remote Desktop protocol. It will occur by far an instance where the Remote Desktop functionally is not activated inside the System Properties screen. This should be your initial troubleshooting step if you try to connect by utilizing the Remote Desktop protocol using the different devices, and all of them give the same problem.
Given below is the step-by-step guide on making sure that the Remote Desktop protocol is activated on the windows device for solving McAfee Error 204.
Firstly, click the Windows key + R button at the same time to open up a Run dialog box. And then, inside the text box, enter ‘SystemPropertiesRemote.exe’ and click Enter to open up the System Properties screen.
Once you go to the System Properties screen, begin by verifying if you are already inside the Remote tab. If you are, move to the Remote Desktop category and change the toggle to Give Permission to connect to this system.
And then, press Apply to save the changes, then try to connect by utilizing the same Remote Desktop protocol once again and verify if the McAfee Error 204 is now solved.
In case the McAfee Error 204 is still not solved, move down to the next potential to resolve below.
Keep in your mind that by default, Windows OS Firewall is not configured to have the Remote Desktop protocol whitelisted. So, if you need to utilize the Remote Desktop to ensure your files are accessible by other devices, you will require to modify the default protection setting. This requires it to be completed regardless of which Windows version you are utilizing.
Note – If you are utilizing a 3rd party firewall suite, the steps given below will not apply. In this condition, you will require to look at particular steps that will give you the permission to white-list the Remote Desktop protocol.
Mention below a quick guide on how to give permission to the Remote Desktop Protocol to communicate with other devices in this network.
Firstly, Click the Windows key + R to go to the Run dialog box. And then, type ‘firewall.cpl’ and click Enter in order to open the Windows Firewall settings menu.
Note – If you got a message from the UAC (User Account Control), press Yes to give administrative privileges.
When you are going to the Windows Defender Firewall settings, press on Allow an app or go through the Windows Defender Firewall menu.
And then, you are inside the Allowed apps window; begin by pressing the Change settings button, which is on the top-right side, in order to be able to modify the list of allowed apps.
After that, move down through the list of allowed items and activate the Private & Public box associated with Remote Desktop.
Now, do the same process with the entry named Remote Desktop (WebSocket) and click Ok to save the changes.
At last, you have to restart your windows device and attempt to connect to it utilizing the Remote Desktop protocol when the next startup sequence is done.
If the issue is still not solved and you are still facing the same McAfee Error 204, go down to the next potential solution below.
As it moves out, there are various types of cases with the operators facing this problem with 3rd party protection suites. McAfee Internet Protection antivirus is the most common 3rd party application suite that is known to facilitate the McAfee Error 204.
What is most likely to occur is the 3rd party AV triggers a false positive and threatens the port utilized by the Remote Desktop protocol as a malicious attempt to access the files from a distance.
In case this condition is applicable to your current scenario, you should be able to solve the problem simply by disabling the real-time security of your 3rd party AV suite. But you have to keep in your mind that the given steps of making this are specific depending on which AV you are utilizing.
But in most of the conditions, you will have the option to disable the real-time security directly from the taskbar menu. To do this, you have to simply right-press on the taskbar menu icon and look for an option that easily disables the real-time security.
In case you are utilizing a 3rd party firewall, disabling it or preventing it from running will not ensure a difference since the same protection suites will remain in location. If the McAfee Error 204 is caused by a 3rd party firewall, the only way to solve it is to establish a whitelisting rule that excludes the Remote Desktop from the given list of analyzed processes.
But you have to keep in mind that the steps of doing so are very different from tool to tool. If your AV has no choice of attaching exceptions, the only viable solution is to uninstall the entire security tool altogether and make sure that there are no remnant files that will still maintain that port block.
In case you need to follow through with this method, given below are the steps for uninstalling your 3rd party firewall.
Click the Windows key + R button to go to the Run dialog box. And then, type ‘appwiz.cpl’ and click Enter to open the Programs and Files menu.
When you manage to get into the Programs and Features menu, move down through the list of installed and placed the entry associated with your 3rd party firewall. Once you see it, right-press on it and select Uninstall from the context menu.
Inside the uninstallation window, go through the on-screen prompts to complete the operation, then restart your system.
And then, the next startup is completed, completely uninstall the application to make sure that you are not leaving behind any remnant files that might still cause this behavior.
When you have to make sure that your 3rd party firewall is removed, try to reconnect by utilizing the Remote Desktop protocol and check if the McAfee Error 204 problem has been solved.
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