this be the same modem I receive from Comcast two year ago , back then I be charge $ 2.00 a month for the modem , then 8 month later $ 5.00 , and now $ 7.00 . when this modem arrive -lrb- onetime -rrb- , I turn off the computer , disconnect it from the wireless router , connect the coax cable to new modem , connect the computer directly to modem . turn on modem , then computer . load the browser , Comcast 's `` self installation '' screen load , -lrb- have you bill handy -rrb- enter my account # , four click later , it be up and run no issue .