no internet after cable box was looked at
Hello, Cox was out today and was looking at our neighborhood cable box. After they were done, our internet does not work. I called Cox and they stated it was a modem issue and to call Netgear. I did that but Netgear wanted almost $140 to help as it was not a hardware issue. I guess my question is, why did our internet stop after the box was looked at, there appears to be no signal to the modem as all the frequency are zero for all channels?