If your cell booster isn’t doing its job… before going crazy try simply unplugging it and plugging it back in a few seconds later. Remember that cell boosters are computers too, and eventually they could freeze up. A quick unplug and replug can restore them back to health.
Honestly, there’s a lot going on inside your average cell booster. In addition to complex two-way communications between the two antennas, there’s anti-feedback circuitry, auto-gain-control circuits, and if this is a 4G booster it could be managing up to five different radios at the same time. No wonder it needs a break every so often.
Remember too, that your cell booster deserves a good, kind environment with a surge protector and an area with plenty of ventilation. Chances are you’re not giving it all the air it needs, and that can mean it freezes up from time to time.