this modem solve my problem . the issue be I be loose connection on my surfboard I have have for year . have my cable company check the street , and I run some neutralize test to issolate the problem to my Surfboard , get this thing , and all be well . the lesson here ? buy a Modem be cheaper than rent , duh ! , but have a modem for 4-5 year you have to remember that technology have a shelf life , and I reach mine a month ago with that surfboard .