as your host & guest are both sharing the same ip (from the outside) and are both using the same port for RDP, you have some potential conflicts

you will need to either switch to bridged or configure NAT to forward a port of your choice (other than 3389 tcp) to your guest vm

assuming you're using W/S 6.0:

open the edit --> Virtual network settings menu

open the NAT tab and click on "EDIT" then on "Port Forwarding"

in the "incoming TCP ports" section, click ADD

for the host port , pick a free port like 9999, enter your guest VM ip address in the virtual machine ip address and 3389 in the port

description: RDP on port 9999

from a remote node on the network, to access your guest via RDP:

mstsc /V:Vmware_HOST_ip:9999

(YES the Vmware HOST ip, not your guest one !)

give it a try and report back