I am also looking for ports that are needed between the roku and phone app.
I have the devices on two seperate networks and have verified i can reach the device using the :8060/query/apps
but my remote must be looking at different ports for its communication.
anyone know those ports. i just have a home setup no good logging
Just guessing, but I'd expect that the mobile app and rokus use multicasts or broadcasts to find each other and those aren't going to cross router boundaries.
I don't know if you sorted this out, but at least on android, manually add the ip of the Roku and open 8060 between the vlans.
Works for me