How to Fix Mac Microsoft Remote Desktop RDP Error Code 0x4
You have a Mac Computer and are running Microsoft Desktop (RDP) throws an Error code: 0x4 just randomly when you try to connect to a computer you have configured for connection.
For us, this problem just randomly started this year after Microsoft updated their RDP software. “Go Microsoft”
We have searched the web, and noticed that the suggestions to Reboot the computer, or restart the RDP software, or both. Do not appear to reliably work. Although we did have some luck with this.
Another suggestion was to copy or recreate the connection in RDP. Again, only limited success with this solution.
The Fix for 0x4 Errors on Mac RDP Remote Desktop Connection
For us the solution came when we went into the system preferences of the Remote Desktop Connection
And you will notice the default preferences look something like this.
We simply unticked the “Use hardware acceleration when possible” check box.
That’s it. After doing this you should notice that it can fixe in some cases the Mac RDP not connecting with 0x4 Errors.
We have found that the errors can reoccur, which is super frustrating. So there are a few other tips that we have found can assist.
It’s odd, but sometime rebooting the computer that is making the connection, and help in eliminating the 0x4 error.
Duplicate the Connection
If you right click / or Two finger click on the connection, and select Duplicate – Then use the duplicated connection, sometimes that can allow you to connect.
When all else has failed, trying to connect from the connection multiple times can also sometimes work after multiple attempts.
Alternating the Attempts
Lastly, trying the original connection, or alternating between the original, then the newly duplicated connection (in the point above) can also help.
Basically we know these are not solutions, but we have found that they definitely can assist in helping to get the connecting going and avoiding the 0x4 error. Hope it helps, and if you find anything else that eliminates or reduces the error, please chime in.