The Channel 4 app through my Amazon Stick for the last few months has continued to fail to work with an error message of "GEOBLOCK" which on searching suggests I am out of the UK which I definitely not. I reloaded the app, I have no VPN, I also contacted my ISP despite this problem only being with the Channel 4 app, restarted the router etc etc . Channel 4 just have a very poor app on Amazon that they just can't be bothered make work reliably. I am close to just not watching anything on C4.