Hi guys. I'm facing same problem to control a Samsung TV.
On Tv's Network Expert setting, IP Remote option is not there, but Power On with Mobile is ON.
All setting is done and driver properties showing the Wired MAC address.
On Action tab while trying to pair the Tv nothing happening on screen to allow for pairing.
Model Code: https://www.samsung.com/ae/tvs/uhd-4k-tv/tu8000-85-inch-crystal-uhd-4k-smart-tv-ua85tu8000uxzn/