I have an LG Tv with WebOS installed. And I'm trying to cast youtube videos from my macbook with mac os high sierra installed to my tv and it doesn't work. It works with iPhone though therefore I don't know what might be a problem.
The thing is that macbook (chrome) doesn't even see the TV device:
All devices are in the same network and on the same bandwidth (2.4). But it also works when tv's on 2.4 and iPhone's on 5ghz.
Really don't know what should I check or what to google.
Rebooting and resetting a router didn't help.
Thanks everyone for your help!