Remote desktop on mac can´t connect to PC

Question

Hi,

I Get the error code:

"We couldn't connect to the remote PC. Make sure the PC is turned on and connected to the network, and that remote access is enabled.

Error code: 0x204"

Problem is my Mac (OS 10.14) can't connect to PC at work (Win 10 Pro). The VPN establishes thou.
I connect via VPN (SonicWall mobile connect)
I also have a PC at home which connects just fine.
If I share internet thru my phone/4G the Mac will connect,
the problem is only when I'm on ethernet/wi-fi (but that's no problem for the PC).

Answer 1

Hi,
Form the error message itself, it indicated the problem was related to the target computer.
Please follow the steps below to enable remote access in the target computer
Remote Desktop - Allow access to your PC
https://learn.microsoft.com/en-us/windows-server/remote/remote-desktop-services/clients/remote-desktop-allow-access
Remote Desktop - Allow access to your PC from outside your PC's network
https://learn.microsoft.com/en-us/windows-server/remote/remote-desktop-services/clients/remote-desktop-allow-outside-access
Allow Remote Desktop through Windows Defender Firewall
You can navigate to Control Panel > System and Security, click on Allow an app through Windows Firewall link located under Windows Defender Firewall.
Click on the Change settings button located in the top-right section.
Scroll down through the list of allowed items and enable the Private and Public box associated with Remote Desktop and Remote Desktop (WebSocket).
Hope this helps and please help to accept as Answer if the response is useful.
Best Regards,
Carl

Answer 2

I had the same problem (macOS Big Sur v11.6 to Windows 10 Pro) and the problem was solved by enabling "Full Disk Access" under "Security & Privacy" for the VPN program (GlobalProtect) for my case. I didn't try hotspoting from my mobile network so I don't know if that's true for my problem.

Just putting this out there and hopefully it helps some folks who have the same problem.