@TeamYouTube You said that for use youtube/tv on my pc I need to connect with wifi but I can't find the option. Wifi just connect with the smart tv in other room of the house. https://www.youtube.com/pair I want to connect with my monitor. Till this morning I could do that with a code
Hmm, try deleting your TV from the linked devices here: https://youtube.com/tv Then, redo "Link with WiFi" process. Let us know how it goes!