I've had a Chromecast for a year and been largely disappointed with its performance.
I have a Sony Xperia tablet and also used Samsung devices.
The mirroring and casting of photos has been frustrating, choppy and unstable.
Chromecast seems to me as an unfinished device with potential, but is easily beaten in terms of stability and image making with the Android iMedia App and an Apple TV.
So as a final roll of the Chromecast dice I am going to hard wire mine to the home network:
http://diydeveloper.io/tech/2015/09/01/chromecast-ethernet/
The products needed come to $11NZ (less mail), cheaper than the official Chromecast ethernet device.
Has anyone else tried this?
More later here this week when the parts arrive if anyone else is interested.
In the picture below the bottom cable link is going to power either USB or the power socket.