Also, check for splitters or other devices connected to the cable going to your satellite receiver. Make sure it's secure and in good condition.
Check with your satellite service provider to see if you could be experiencing a service outage in the area.Contact your service provider for assistance. If another device receives a signal from that port but not the cable box, your cable box may be defective.If you have another source device, connect it to the same TV input to help determine if there is a problem with the cable box.Remove any splitters or other connected devices (unless required by your service provider), then reconnect the cable directly to your satellite receiver or cable box. Also, check for splitters or other devices connected to the cable going to your cable box. Check the cable coming into your home (building) that connects to your cable box.Perform a power reset of your TV, and then make sure the correct input is selected on your TV.Try connecting your cable box to a different port on your TV, and then use your remote to select the matching input for that port.Check the cable connection from your TV to your cable box.Check with your cable service provider to see if you could be experiencing a service outage in the area.
After performing a power reset, make sure the correct input is selected on your TV.If the issue is resolved, the problem may be with the power strip or surge protector and not the device or TV. Note: If the device is plugged into a power strip or surge protector, remove and plug it directly into the wall outlet.