Why Is My Cable Not Working On My Roku Tv. If the Roku TV fails to connect to the internet or has connectivity issues you will be unable to access most of the content. One potential reason your TV will not connect to cable TV is that the television does not have the proper video inputAttach the twin-lead end of the adapter to the TVs antenna input and the other end to the coaxial cable connected to the cable outlet or coaxial output on the set-top receiver box.
Your TV will send you a notification about the total number of channels. If thats good removeadd the channel. Use the remote to turn on your Roku TV.
After that my ROKU TV was good again.
Power reset your TV and router. I have a TV with a regular xfinity cable box in another room that hadnt been used for about a month. After that my ROKU TV was good again. After that either try a different USB port or plug it into a wall.
