I have Comcast and that be a problem for a few people . I go ahead and buy the item . I have to call Comcast several time before get the item to work . it be a lot more headache than anticipate . I be somewhat computer savy and I have wire home and car . this be not rocket science . I have do it many , many time . so take it for what it be worth . the item work perfectly now . I think Comcast get 70 % of the blame . I 'll rate it 4 out of 5 .