So I have a comcast cable modem.........

[DemonDeac]

....and it goes in and out at times. it'll be fine for a day or two, but then it just plain sucks. you can imagine how much it sucked when you're ITM for a MTT and cant really play any hands. does anyone know why it does this? our cable sucks to begin with, but never goes out, just our cable modem. does anyone have any thoughts or should i call Comcast and let them do something?