If you have trouble getting an screen mirror from Samsung S7 Edge to Chromecast 2 to work: reboot phone
Posted by jpluimers on 2018/09/25
A friend of mine tried to get screen mirror (now called “Smart View”) from a Samsung S7 Edge to a Chromecast 2 working, but the connection would time out each try (but not when casting regular content using the Google Home app): try rebooting your S7 Edge.
Got that reboot tip and renamed functionality thanks to the somewhat related [WayBack] Galaxy S7: How to Screen Mirror to any Samsung Smart TV:
In order to connect (screen mirror) you Galaxy S7 or S7 Edge to your Samsung smart TV you need to swipe down to open your notification area, then on the top right click that little down arrow then select “smart view”. Previous Galaxy phones called it screen mirror, not sure why Samsung changed the name in the S7.
Got the renamed functionality via the video below.
–jeroen
The Wiert Corner - irregular stream of stuff 
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