Hi @Danny - I’m sorry, I really wish I knew so I could combat this problem in the future.
The TV, is an Samsung UE49MU6175 from 2017. I started using this TV with Wifi with Homey and it (almost) never failed. Then I “upgraded” it to Ethernet, gave it a fixed IP etc, all the tricks, and it NEVER started by my flow in the morning. To be fair to the TV and this App it must be said that, at this period Homey was acting up in all sorts of weird ways. I could not add Z-wave devices, other apps were malfunctioning etc etc. I’m not sure if this was all Homey or a combination of Homey and a wonky Wifi. Anyways, I forgot (irritably put it back in my mind) for a few weeks, and all of a sudden, one morning the TV was put on in the morning. I had to double check if I had removed the Ethernet cable, but it was still there. Since then it works flawlessly. Wifi is great. But I think Homey actually get a bit (alot) crazy over some periods regardless of Wifi.
Sorry I could not pinpoint the magic, really hope you get your TV responding soon, I do understand the frustration! 
Thanks!
