So, since Chromecast updated to 16664 i have been unable to use it in conjunction with Unblock-Us VPN service. This is only the case when attempting to play through chromecast, all other devices work as expected. I have tried routing my primary AP router to Unblock-Us DNS servers and i have also set up a dd-wrt router as a repeater and applied all necessary measures to preroute chromecast dns requests or simply block its dns requests. None od this has worked unfortunately.
The build update for 16664 stated 'dns robustness' which i figure is why this has happened. Does anyone know what this mean? Perhaps, if we knew this info we could figure out a work around.