I cannot get any RDP 8.0 clienst to connect to my 2012 Gateway server. RDP 7.1 clients have no issue. The error is "Your computer can't connect to the remote computer because and error occurred on the remote computer that you want to connect to. Contact your network administrator for assistance."
I did some googling and tried the following suggested fixes, whcih did NOT work:
1. Disable TLS 1.2 in registry
2. Change value for Computer Configuration\Policies\Windows Settings\Security Settings\Local Policies\Security Options\Network security: LAN Manager authentication level to Send NTLMv2 response only