The system doesn’t seem to be responding when you press buttons on the remote, even though the red indicator light flashes.
The remote may be in the wrong mode.
The remote may need new batteries (there may be enough power for the light to flash, but not enough to send an adequate signal).
The set-top box may be “locked up”.
What to Do
Press the TV or CBL button and try again.
Replace the batteries and try again.
Reset the set-top box (unplug it from the power source and plug it in again). After the box finishes rebooting, try again.