problem whit RDP

[kpenbILLl]

Hello dear members!
Question to you may be able to help.
situation in the next-
have a virtual machine with Ubuntu
configured VRDP = remote display
port forwarding on the router is done (it is specified host IP)
Mysticism and then ....
in the presence of android phone
set RD Windows client - connection goes with a bang
When you try to connect from Windows gives an error

Can not connect to remote desktop
VirtualBox 4.3.12 version of the freshest.
I would be grateful

[kpenbILLl]

partly solved
If you set the authentication method
no authorization
but the desire to leave so much no ...