even with a decent surge protector , my separate Netgear modem and Belkin router -lrb- both recent purchase -rrb- would need reboot after even brief power blip . and the wifi signal be weak . I be tell a combo unit would help , so go for this all-in-one unit . right out of the box , have no problem hook up and put in the wifus password . no need to use install disc . BUT , do have problem with Charter Comm 's try to complete the install . multiple try with they online `` modem replacement '' program be futile , and it take several try to get through on the phone . when I finally get a human on the line , all he need be the new Mac number and the rest of the install go quickly . strength of wifus and speed greatly improve over last system . now just wait on power blip to see what happen .