No, when I start the vm the console starts automatically and assigns the ports automatically.
I thought this was a new feature built into the kvm plugin.
You are confusing the ports. The autoports are the VM's ports that vnc and spice listen on (in the 5xxx range). The ports you are having a problem with are the novnc and spice5html ports that the web console runs on (8xxx range). The web console ports are the ports you pick.