I have https://wikidevi.wi-cat.ru/Google_Nest_WiFi_Router_(H2D) router which gives me a speedtest of and it is connected to Xfinity Router from Comcast
Speed Test with Google Nest WIfi Router
Speed Test directly with Xfinity Router
Clearly Google Nest Wifi Router is dropping the speed.
How do I fix this ?
Google Nest Help Center
Chromecast Help Center