RDP issues

Turn of NLA:

https://fixingitpro.com/2011/07/06/disabling-rdp-network-level-authentication-nla-remotely-via-the-registry/

Give network service account read permissions to the Keys folder.

https://serverfault.com/questions/541364/how-to-fix-rdp-on-windows-server-2012

https://support.microsoft.com/en-us/help/2001849/how-to-force-remote-desktop-services-on-windows-7-to-use-a-custom-serv

Make sure Remote Desktop Services(TermService) service is running under network service.