So I've gone down the road of using a raspberry pi as a portable hotspot and rooting a Chromecast. This is more reliable once connected however the process of connecting is a bit tricky. At the moment I have to give the Chromecast an internet connection through a USB tether to the pi then connect to the wi-fi and cast screen. Eventually disconnecting the tether and the phone falls back to cell data whilst still casting the screen. My question is can I stop a rooted Chromecast with Eureka ROM needing an internet connection to be able to receive screen casts? I must note for some reason it only needs to be connected once after boot after that it will still be able to cast to despite complaining of no internet connection. Which is different to what a non rooted Cc did so it's like it's almost there but not quite.