Port forwarding returns local IP of virtual machine

Hi.

I configure several port forwarding on a nat.conf to several virtual machines. All works fine, but in the last virtual machine added, port forwarding to Remote Desktop works fine but to a application server it doesnt work. It returns the local IP of the virtual machine.

Example of nat.conf

3390 = 192.168.255.10:3389 --> It works fine

90 = 192.168.255.10:80 --> Not work

If in a browser I type the host IP and port 90 (200.XXX.XXX.XXX:90), it automatically change to the virtual machine local IP and port 80 (192.168.255.10:80)

What can be the cause of this behavior?

Thanks,