MT841 i think is a 4 port router.. so most probaly the iptv guy would have used one port for your computer and the other port for iptv.. so then it should be the best setup.. another thing which may make your iptv function better.. if you have some video clarity issues, you should make sure that the telephone cable from the telephone pole goes directly to your splitter and then to other telephones and your modem.. there should be no telephone before the splitter.. this gives a better signal.. and you will get better speeds and better iptv quality...