This forum is for Apple's Remote Desktop and therefore not for you. Microsoft's Remote Desktop forum is here:

How to Use Remote Desktop Connection for MacIn this video we are going to learn about How to use Microsoft Remote Desktop for connecting Windows Machine. If you're having trouble connecting to one of your Windows machines using Remote Desktop (RDP), here's a short guide on how to troubleshoot. Verify if the connection works with Microsoft Remote Desktop for Mac First of all, please verify that.

0x3000066

Error Code: 0x3000066

Remote Desktop Error Code: 0x3000066

You should have a word with your network administrator and ask them the question. FWIW I think there's a certificate or a protocol setting that needs to be configured somewhere that will allow your Mac to 'pass-through'. This could be something built-in on a PC or pre-configured when your IT department roll out the setting to their PC clients. Be patient and persistent and don't let them fob you off simply because you're on a Mac and not a PC. They should be supporting you properly irrespective of platform. It's their job after all

Remote Desktop Error Code: 0x3000066

Apr 3, 2020 4:17 AM