I recently purchased an LED Smart TV. When I try to connect to the internet on my TV via my wireless, I get the connection to my wireless router, but then get an error message that says I need to contact my service provider. (so I can't download apps etc on my TV) Is there some other step I need to do? It o sclearly seeing my WiFi connection, and both my internet and my TV are through Xfinity.
We would need more information about your network and the TV to be much help. Do you have a router which provides DNS services downstream of your cable modem? If Comcast "thinks" the TV is a Computer, you may need to "register" the device's MAC address with their network before it will work properly. I'd recommend a phone call to Tech Support.