I have this device for three years and i use it stricly in FLORIDA once or twice a year. I periodically check the device at home during the year. Three weeks ago, I did an audit. I logged in as usual but I could not get a video signal. I did a reset on the device without success. The remote control that appears on the screen does not work and the message "NO SIGNAL VIDEO" appears on my screen. If I turn on the TV and the decoder, the on-screen unit will appear on my screen with the sound but the remote does not change the stations and does not turn off and on the TV or the decoder?