Trying to get Chromecast to work with a laptop and SmartBoard that are on the same subnet. I've imported the policys from https://danthesalmon.com/allow-a-chromecast-through-a-watchguard-firewall/ but still have issues. I'm not sure I've configured those policies correctly though. Any help with getting Chromecast to work would be appreciated. It works fine when the laptop and SmartBoard are connected to a mobile hotspot.