It has worked in the past and in the past I was able to have the attenuator go down to one light. Now it shows four lights of the same intensity no matter how I turn the peg or turn the antenna. I located the stations and aimed at them. I picked up ION but not CBS that was very close. Maybe this means something- I had a SWM installed for my winnegard traveler satellite. They bypassed the port in the cabinet and installed their own multi-switch directly to the dish and the receiver. I have a plate with two coax outlets and one is labeled satellite and other portable satellite. I assume the satellite is no longer needed as the SWM is now hooked directly and if I use the vucube I would hook from the coax port labeled portable. I have a plate with coax female in the other front compartment with the push button for the power boost. When I engage it and the green light comes on I can then turn on the Jack. If the green light is not on the Jack does not turn on with its own switch. I have scanned both full and partial, reset to factory settings on Vizio, checked parental controls. Obviously switched from cable to antenna and changed input from comp to TV. I am in Orlando at Disney and have many stations within 30 miles and most are north to north-east. I don't use the Jack very often as the satellite is my preference but I do know in the past I had to turn the attenuator and antenna to get 4 blue lights tuned in and now all I get are four. I also recall in the past I depressed the button in the compartment to get green light and engage the onboard power boost. I am baffled and thinking equipment failure.