Almost Each TV/device including Samsung TV Tizen, Samsung Orsay, LG Netcast, Andriod TV, …ect, has 2 MAC addresses, 1st is Ethernet, 2nd is Wifi, the app will use the connected MAC for activating, and 2nd MAC is activated automatically after you switch to another connection type and restart SmartOne iptv app. MAC address is unique for every TV and cannot be changed manually.
for some LG webOS TVs, there is no access to MAC address, so only device ID is available in SmartOne IPTV app, the TV will be activated automatically after app launch and a unique MAC address will be assigned to the TV, so even if you change connection type the MAC address will remain the same.