Apple TV and Samsung S95F - on/off from Apple TV remote

Just got my new Samsung TV and I’m having real frustration getting the Apple TV remote to turn on the TV. It works fine if I’ve just used it to turn the TV off, but if some time has passed, I have to use the remote for the S95F separately to turn the TV on. Is this a known problem? I believe I have the settings right in both TV and streaming box, but I was once wrong in my beliefs 😉.