Broadband connection and booster

[Katrina+Mac]

My broadband box keeps cutting out on a regular basis and also my booster box is constantly saying no connection, I have tried to reset, reboot, re connect etc but still nothing, I have not moved any boxes nor had power cut etc, I feel I am continuously having problems with a serves that I am paying alot for. My boxes are in the same place that the engineer put them in and I am only in a small 2 bed property.