I’ve always wondered how we are suppose to come-up with these port numbers if not specified. However, it looks like they are only required when the device is using a Fixed IP (which I just so happen to prefer).
Now-days, your Router should be set to uPnP. Set the Projector to grab an IP from DHCP. Tell Simple Control to auto-detect it. In the Router, you can now Reserve that IP. Re-Setup the Device in Simple-Control and Test.
I think about now ( either in Simple-Control or in Router) the Port should be revealed. If you managed to get it working, but really want a Fixed-IP, you should have enough info to do that (and hopefully, it will still work).