this unit take care of a lot of my Comcast issue . I have six television in the house along with the Xfinity internet . when Comcast decide to `` improve my service '' by go all digital , half of the television in the house pick up very little along with the improvement by Comcast , they infome I I need a newer modem to take advantage of the higher speed . purchase this modem and find out I do not have enough signal to provision it . purchase and install this signal booster on half of the service in my home that include the new modem and all my issue go away . if you be experience these same issue I highly recommend this booster as a crutch to improve you cable experience . very easy to install . the best price I could find be right here on Amazon .