Guacamole drop connection in Windows 10

Question

I have configured a Debian server on which I have installed Guacamole to connect to virtual machines.

When I try to set RDP to connect on VM with Windows 10 I get this error:Connect Error

Here are connection settings: Guacamole GUI

1. I disable/enable Remote Connection form windows.
2. I disable all security/firewall
3. I try to change port
4. I try with VNC/SSH connection and works.

I serach on Google for this problem and nothing good.